64 is the 8th square number.
64 is the 4th cube number.
64 is the 4th superperfect number.
64 is the only 2-digit square number containing both even digits.
It is the number of ways of coloring complete graph \(K_4\) by two colors. It is why Graham's number is the 64th member of G-sequence.
In Greek-based number-naming systems, 64 is associated with prefix "tetrahexaconta-", and with prefix "quattuorsexaginti-" in Latin systems.
It can be named gareight with the gar- prefix.
- ↑ Saibian, Sbiis. Hyper-E Numbers. Retrieved 2016-07-17.
- ↑ Part 1 (LAN) - Aarex Googology
- ↑ Part 1 - My Large Numbers