How much is 665?
It's about one-one-hundred-thousandth the number of Copies of Wii Sports Sold
The count of Copies of Wii Sports Sold is about 82,690,000.
(a.k.a. Wii スポーツ, a.k.a. Wi Supotsu) (2006 edition) (sales figures as of March 31, 2015)
It's about one-three-hundred-fifty-thousandth the number of Copies of Charles Dickens' A Tale of Two Cities Sold
The count of Copies of Charles Dickens' A Tale of Two Cities Sold is about 200,000,000.
(figures as of 2015)
It's about 0.0000005 times the number of Users on Facebook
The count of Users on Facebook is about 1,440,000,000.
(March, 2015 figures) (monthly active users)
It's about 0.00000004 times the number of Chickens in the World
The count of Chickens in the World is about 19,000,000,000.
(a.k.a. fowl) (Gallus gallus domesticus) (2011 figures) (average population)
It's about 0.000000003 times the number of Emails Sent per Day
The count of Emails Sent per Day is about 294,000,000,000.
(2010 figures) (estimated averages)