65 (sixty-five) is a positive integer following 64 and preceding 66. Its ordinal form is written "sixty-fifth" or 65th.

Properties Edit

65 is an odd composite number.

65 is the number of known idoneal numbers.

In googology Edit

In Greek-based number-naming systems, 65 is associated with prefix "pentahexaconta-", and with prefix "quinsexaginti-" in Latin systems.