# 160 number

160 is the natural number following one hundred fifty-nine and preceding one hundred sixty-one.

 Template:Numbers 100-200 Ordinal One hundred [and] sixty Cardinal 160th Factorization ${\displaystyle 2^{5}\cdot 5}$ Roman numeral CLX Binary 10100000 Hexadecimal A0

One hundred sixty is the sum of the first 11 primes, as well as the sum of the cubes of the first three primes. Given 160, the Mertens function returns 0. 160 is the smallest number n with exactly 12 solutions to the equation φ(x) = n.

One hundred sixty is also:

## Other numbers in the 160s

161 = 7 23, sum of five consecutive primes (23 + 29 + 31 + 37 + 41), hexagonal pyramidal number

162 = 2 3^4, Harshad number, divisible by φ(162), untouchable number

163 = prime number, Mertens function returns 0. Multiplied by Template:Num/neg, a Heegner number

164 = 2^2 41, Mertens function returns 0

165 = 3 5 11, sphenic number, tetrahedral number, self number

166 = 2 83, Smith number, Mertens function returns 0, centered triangular number

167 = prime, safe prime

168 = 2^3 3 7, sum of four consecutive primes (37 + 41 + 43 + 47)

One hundred sixty-nine has an article of its own.