165464920 has 32 divisors (see below), whose sum is σ = 391892400. Its totient is φ = 62702208.

The previous prime is 165464869. The next prime is 165464933. The reversal of 165464920 is 29464561.

It is a self number, because there is not a number n which added to its sum of digits gives 165464920.

It is a congruent number.

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, 108099 + ... + 109618.

Almost surely, 2^165464920 is an apocalyptic number.

165464920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165464920 is an abundant number, since it is smaller than the sum of its proper divisors (226427480).

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

165464920 is a wasteful number, since it uses less digits than its factorization.

165464920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217747 (or 217743 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 165464920 is about 12863.3168350935. The cubic root of 165464920 is about 548.9953229131.

The spelling of 165464920 in words is "one hundred sixty-five million, four hundred sixty-four thousand, nine hundred twenty".