64 or sixty-four may refer to:
64 (number), the natural number following 63 and preceding 65
Dates one of the years 64 BC, AD 64, 1964, 2064
Places Highway 64, see list of highways numbered 64 Interstate 64, a national route in the United States The code for international direct dial calls to New Zealand (+64)
Music "64" (song), a 2011 song by hip hop band Odd Future Sixty Four (album), a 2004 album recorded in 1964 by Donovan "64" is the title of a song by the hip-hop group Mellowhype from their album BlackenedWhite
Science The atomic number of gadolinium, a lanthanide 64 Angelina (asteroid 64), a main-belt asteroid
Technology Base64 encoding Commodore 64 (in 8-bit home computers, a common shorthand is 64) A /64 Classless Inter-Domain Routing block
Other Nintendo 64, a 1996 video game console 64, a Russian chess magazine Sixty-four (ship), a type of sailing warship Crayola 64 pack 64 Zoo Lane, a British animated children's TV series Porsche 64, a race car derived from the Volkswagen Beetle The international calling code for New Zealand A number used to represent the Tiananmen Square protests and massacre.
See also
64th (disambiguation) 64DD, Nintendo 64 video game accessory