165885696 has 54 divisors (see below), whose sum is σ = 478296000. Its totient is φ = 55294464.

The previous prime is 165885679. The next prime is 165885697. The reversal of 165885696 is 696588561.

It is a happy number.

165885696 is a `hidden beast` number, since 1 + 6 + 588 + 56 + 9 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165885697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33696 + ... + 38303.

Almost surely, 2^165885696 is an apocalyptic number.

165885696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165885696 is an abundant number, since it is smaller than the sum of its proper divisors (312410304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165885696 is an equidigital number, since it uses as much as digits as its factorization.

165885696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72021 (or 72004 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 165885696 is about 12879.6621073691. The cubic root of 165885696 is about 549.4602926044.

The spelling of 165885696 in words is "one hundred sixty-five million, eight hundred eighty-five thousand, six hundred ninety-six".