64 (sixty-four) is the natural number following 63 and preceding 65.
Mathematics
64 is a power of two, an interprime, a superperfect number, an Erdős–Woods number, a square and a cube.
In four dimensions, there are 64 convex uniform polychora aside from two infinite families of duoprisms and antiprismatic prisms, and 64 Bravais lattices.
thumb|A [[chessboard has 64 squares.]]
See also
- List of powers of two
- 64-bit computing