165584164 has 12 divisors (see below), whose sum is σ = 305023600. Its totient is φ = 78434568.

The previous prime is 165584143. The next prime is 165584207. The reversal of 165584164 is 461485561.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089294 + ... + 1089445.

Almost surely, 2^165584164 is an apocalyptic number.

It is an amenable number.

165584164 is a deficient number, since it is larger than the sum of its proper divisors (139439436).

165584164 is a wasteful number, since it uses less digits than its factorization.

165584164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178762 (or 2178760 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 165584164 is about 12867.9510412497. The cubic root of 165584164 is about 549.1271709582.

The spelling of 165584164 in words is "one hundred sixty-five million, five hundred eighty-four thousand, one hundred sixty-four".