165118256 has 10 divisors (see below), whose sum is σ = 319916652. Its totient is φ = 82559120.

The previous prime is 165118253. The next prime is 165118259. The reversal of 165118256 is 652811561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (165118253) and next prime (165118259).

It is not an unprimeable number, because it can be changed into a prime (165118253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5159930 + ... + 5159961.

Almost surely, 2^165118256 is an apocalyptic number.

165118256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165118256 is a deficient number, since it is larger than the sum of its proper divisors (154798396).

165118256 is a wasteful number, since it uses less digits than its factorization.

165118256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10319899 (or 10319893 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

The square root of 165118256 is about 12849.8348627521. The cubic root of 165118256 is about 548.6116565345.

It can be divided in two parts, 16511 and 8256, that multiplied together give a triangular number (136314816 = T₁₆₅₁₁).

The spelling of 165118256 in words is "one hundred sixty-five million, one hundred eighteen thousand, two hundred fifty-six".