It's about one-three-thousandth as heavy as a Hippopotamus
In other words, 0.000000001350 megatonnes is 0.00036 times the weight of a Hippopotamus, and the weight of a Hippopotamus is 2,780 times that amount.(Hippopotamus amphibius) (adult, male)
The average weight of an adult male hippopotamus ranges from 0.000003750 megatonnes. Appearances to the contrary, adult hippos cannot swim or float in water; they actually move by leaping and walking across lake bottoms at about 8 kph (5 mph).
It's about one-four-thousand-five-hundredth as heavy as an Elephant
In other words, the weight of an Elephant is 4,500 times 0.000000001350 megatonnes.(for African bush elephant, Loxodonta africana) (Adult, bull)
A bull African bush elephant weighs about 0.00000610 megatonnes. Among African elephants, both males and females have tusks (whereas female Asian elephants, Elephas maximus, do not have tusks) which can grow to 3 m (10 ft) and typically weigh about 0.00000400 megatonnes
It's about one-five-thousandth as heavy as a Tyrannosaurus rex
In other words, 0.000000001350 megatonnes is 0.00021 times the weight of a Tyrannosaurus rex, and the weight of a Tyrannosaurus rex is 4,800 times that amount.(for FMNH PR2081, a.k.a. "Sue") (a.k.a. Tyrannosaurus, a.k.a. T-Rex) (estimated live weight)
The notable Tyrannosaurus specimen housed at the Field Museum of Natural History in Chicago, Illinois, "Sue," is estimated to have weighed about 0.00000640 megatonnes while alive. A renowned predator in popular culture, the teeth of tyrannosaurus rex were up to 33.02 cm (13 in) long.
It's about 7,000 times as heavy as a Raindrop
In other words, the weight of a Raindrop is 0.0001 times 0.000000001350 megatonnes.(a.k.a. drop, a.k.a. droplet) (average)
The weight of a raindrop depends heavily on the type of weather, but averages about 0.000000000000200 megatonnes. The familiar teardrop shape of a raindrop is actually an optical illusion, caused by the reflection of the light and the motion of the drop.
It's about one-eight-thousand-five-hundredth as heavy as an Anchor of a Cruise Ship
In other words, 0.000000001350 megatonnes is 0.000119 times the weight of an Anchor of a Cruise Ship, and the weight of an Anchor of a Cruise Ship is 8,400 times that amount.(for QE2 forward anchor, a.k.a. RMS Queen Elizabeth 2)
Each of the forward anchors of the RMS Queen Elizabeth 2 weighs 0.00001130 megatonnes. The anchor of the QE2 now sits in front of the Holyrood Church in Southampton, England, United Kingdom, along a pedestrian tourist route known as "the QE2 mile."
It's about one-fifty-five-thousandth as heavy as The Space Shuttle
In other words, the weight of The Space Shuttle is 53,000 times 0.000000001350 megatonnes.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 0.0000710 megatonnes. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 0.0000200 megatonnes.
It's about 65,000 times as heavy as a Grain of Rice
In other words, the weight of a Grain of Rice is 0.0000160 times 0.000000001350 megatonnes.(conventional; US; long-, medium-, and short-gran varieties; uncooked)
With great differences in variety, the average among a sampling of common short-, medium- and long-grain rices finds that a single grain weighs about 0.0000000000000210 megatonnes before cooking. A staple through most of human history, archaeological evidence indicates that the earliest rice cultivation was about 11,500 years ago.