64 (number)
Sixty-four is a number. It comes between sixty-three and sixty-five, and is an even number.
Math
It is divisible by 1, 2, 4, 8, 16, 32, and 64. 64 is the 8th square number after 1, 4, 9, 16, 25, 36, and 49. It is the fourth cube after 1, 8, and 27.
Other
There are sixty-four 1x1 squares on a chess, checkers and draughts board. It is also a power of two.
64 (number) Media
A chessboard has 64 squares.