164542056 has 64 divisors (see below), whose sum is σ = 486345600. Its totient is φ = 45389568.

The previous prime is 164542039. The next prime is 164542097. The reversal of 164542056 is 650245461.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12015 + ... + 21758.

It is an arithmetic number, because the mean of its divisors is an integer number (7599150).

Almost surely, 2^164542056 is an apocalyptic number.

It is an amenable number.

164542056 is an abundant number, since it is smaller than the sum of its proper divisors (321803544).

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

164542056 is a wasteful number, since it uses less digits than its factorization.

164542056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33818 (or 33814 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 164542056 is about 12827.3947471807. The cubic root of 164542056 is about 547.9727640219.

The spelling of 164542056 in words is "one hundred sixty-four million, five hundred forty-two thousand, fifty-six".