(March 2010) 16 ( sixteen) is the natural number following 15 and preceding 17. 16 is a composite number, and a square number, being 4 2 = 4 × 4. It is the smallest number with exactly five divisors, its proper divisors being 1, 2, 4 and 8 . In English speech, the numbers 16 and 60 are sometimes confused, as they sound very similar.

16 ( sixteen) is the natural number following 15 and preceding 17. 16 is a composite number, and a square number, being 4 2 = 4 × 4. It is the smallest number with exactly five divisors, its proper divisors being 1, 2, 4 and 8 . In English speech, the numbers 16 and 60 are sometimes confused, as they sound very similar.

Radio 16 based in Newcastle, NSW Australia plays the best of music and radio drama from the Twenties, Thirties, Forties, Fifties and a sprinkling of the Sixties. We also feature films in the Radio 16 theatre.

Sixteen is the base of the hexadecimal number system, which is used extensively in computer science . Sixteen is the largest known integer n for which 2 n +1 is prime. It is first Erdős–Woods number.