64

64 (sixty-four) is a positive integer following 63 and preceding 65. Its ordinal form is written "sixty-fourth" or 64th.
== Properties ==
*64 is an .
*64 is the 8th .
*64 is the 4th .
*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.
*It is also the number of red in a set.
== In googology ==
*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.
*Sbiis Saibian coined the name binary-clover mite for this number.
*Aarex Tiaokhiao coined the name octal-booiol for this number.Part 1 (LAN) - Aarex Googology
*Username5243 coined the name Octal-Goodol for this number, and it's equal to 8[1]2 in Username5243's Array Notation.Part 1 - My Large Numbers
*ARsygo coined the name The Powering Wilter / The powering wilter for this number, and it's equal to (0)(1)(0)(1)[16] in Bashicu matrix system with respect to version 2.3 = 4 simulating Hardy hierarchy.AR Googol - Vast Irregulars of Goals numbers. Retrieved 2023-12-26. It is the 102th number of Vast Irregulars of Goals.
*\(\text{G}(64)\) is Graham's number, a well-known googologism, where \(\text G\) is Graham's function.
== Sources ==
== See also ==
Category:Numbers
Category:Class 1
Category:Domino-related numbers
Category:Numbers 0-99
Category:Numbers with 1 to 2 digits
Category:Powers of 2
Category:Gar-
Category:Googol Regiment