How much is 66?
It's about nine-tenths the number of Submarines in the US Navy
The count of Submarines in the US Navy is about 72.
(a.k.a. Subs) (includes all types, all classes) (2015 figures)
It's about one-and-one-fifth times the number of Countries in Africa
The count of Countries in Africa is about 56.
(2016 figures) (sovereign states recognized by the UN only)
It's about three-fourths the number of Keys on a Piano
The count of Keys on a Piano is about 88.
(Moden layout; A0 to C7)
It's about one-and-two-fifths times the number of Teeth in a Great White Shark's Mouth
The count of Teeth in a Great White Shark's Mouth is about 48.
(Carcharodon carcharias) (average; including developing rows)
It's about two-thirds the number of Wolves in Yellowstone National Park
The count of Wolves in Yellowstone National Park is about 104.
(a.k.a. Henihco'oo; a.k.a. Héetíhco'oo) (December 2014 figures; Wyoming Park area)
It's about three-fifths the number of Elements on the Periodic Table
The count of Elements on the Periodic Table is about 118.
(a.k.a. Periodic Table of the Elements, a.k.a chemical elements) (confirmed elements as of 2016)
It's about half the number of Union Stations in the United States
The count of Union Stations in the United States is about 135.
(a.k.a. Union Terminal; a.k.a. Joint Station; a.k.a. Union Depot) (2016 figures)
It's about half the number of Moons in our Solar System
The count of Moons in our Solar System is about 146.
(2015 figures) (confirmed moons only; dwarf planet satellites not included)
It's about two-and-a-half times the number of Countries in the European Union
The count of Countries in the European Union is about 27.
(a.k.a. EU) (2016 figures)
It's about two-fifths the number of John Wayne films
The count of John Wayne films is about 178.
(a.k.a. "Duke", a.k.a. JW, a.k.a. Marion Mitchell Morrison, a.k.a. Marion Robert Morrison, a.k.a. Duke Morrison) (films starring the actor in any size role)
It's about one-third the number of Bones in the Human Body
The count of Bones in the Human Body is about 206.
(adult, excluding sesamoid bones and ossicles)
It's about one-fourth the number of Words in the Gettysburg Address
The count of Words in the Gettysburg Address is about 272.
It's about one-fourth the number of Professional Baseball Teams in the United States
The count of Professional Baseball Teams in the United States is about 276.
(2016 figures) (includes Major, Minor, and Independent Leagues)
It's about four-and-a-half times the number of Living Kings and Queens
The count of Living Kings and Queens is about 15.
(2015 figures) (distinct Monarchs)
It's about one-fifth the number of Beatles Songs
The count of Beatles Songs is about 309.
(a.k.a. The Beatles) (1958 thru 1996)