165572964 has 24 divisors (see below), whose sum is σ = 429263520. Its totient is φ = 55190952.

The previous prime is 165572959. The next prime is 165572983. The reversal of 165572964 is 469275561.

165572964 is a `hidden beast` number, since 1 + 6 + 557 + 2 + 96 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766434 + ... + 766649.

It is an arithmetic number, because the mean of its divisors is an integer number (17885980).

Almost surely, 2^165572964 is an apocalyptic number.

It is an amenable number.

165572964 is an abundant number, since it is smaller than the sum of its proper divisors (263690556).

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

165572964 is a wasteful number, since it uses less digits than its factorization.

165572964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533096 (or 1533088 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 165572964 is about 12867.5158441713. The cubic root of 165572964 is about 549.1147898165.

The spelling of 165572964 in words is "one hundred sixty-five million, five hundred seventy-two thousand, nine hundred sixty-four".