164 (one hundred [and] sixty-four) is the natural number following 163 and preceding 165.
In mathematics
164 is a zero of the Mertens function.
In base 10, 164 is the smallest number that can be expressed as a concatenation of two squares in two different ways: as 1 concatenate 64 or 16 concatenate 4.
In astronomy
164P/Christensen is a comet in the Solar System
164 Eva is a large and dark Main belt asteroid
In geography
Chaplin no. 164, Saskatchewan in Saskatchewan, Canada
In the military
was a cargo vessel during World War II
was a T2 tanker during World War II
was a Barracuda-class submarine during World War II
was an Alamosa-class cargo ship during World War II
was an Admirable-class minesweeper during World War II
was a Trefoil-class concrete barge during World War II
was a during World War II
was a during World War II
was a yacht during World War I
was a during World War II
In sports
Baseball Talk was a set of 164 talking baseball cards released by Topps Baseball Card Company in 1989
In transportation
Caproni Ca.164 was a training biplane produced in Italy prior to World War II
The Alfa Romeo 164 car produced from 1988 to 1997
The Volvo 164 car produced from 1968 to 1975
List of highways numbered 164
Is a London Transport bus route running between Sutton and Wimbledon
In other fields
164 is also: The year AD 164 or 164 BC 164 AH is a year in the Islamic calendar that corresponds to 780 – 781 CE The Scrabble board, a 15-by-15 grid, includes 164 squares that have neither word nor letter multiplier. The remainder have attributes such as double letter, triple letter, double word, and triple word The atomic number of an element temporarily called Unhexquadium Solvent Red 164 is a synthetic red diazo dye E.164 is an ITU-T recommendation defines public telecommunication numbering plan used in the PSTN and data networks