165056404 has 12 divisors (see below), whose sum is σ = 288943200. Its totient is φ = 82501208.

The previous prime is 165056393. The next prime is 165056407. The reversal of 165056404 is 404650561.

It is a super-2 number, since 2×165056404² = 54487233002822432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165056407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14307 + ... + 23125.

It is an arithmetic number, because the mean of its divisors is an integer number (24078600).

Almost surely, 2^165056404 is an apocalyptic number.

It is an amenable number.

165056404 is a deficient number, since it is larger than the sum of its proper divisors (123886796).

165056404 is a wasteful number, since it uses less digits than its factorization.

165056404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13502 (or 13500 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 165056404 is about 12847.4279137888. The cubic root of 165056404 is about 548.5431461087.

The spelling of 165056404 in words is "one hundred sixty-five million, fifty-six thousand, four hundred four".