164626864 has 20 divisors (see below), whose sum is σ = 329254720. Its totient is φ = 79657920.

The previous prime is 164626831. The next prime is 164626867. The reversal of 164626864 is 468626461.

164626864 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 164626864.

It is not an unprimeable number, because it can be changed into a prime (164626867) 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, 165459 + ... + 166450.

It is an arithmetic number, because the mean of its divisors is an integer number (16462736).

Almost surely, 2^164626864 is an apocalyptic number.

It is an amenable number.

164626864 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

164626864 is a wasteful number, since it uses less digits than its factorization.

164626864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331948 (or 331942 counting only the distinct ones).

The product of its digits is 331776, while the sum is 43.

The square root of 164626864 is about 12830.7000588432. The cubic root of 164626864 is about 548.0668929300.

The spelling of 164626864 in words is "one hundred sixty-four million, six hundred twenty-six thousand, eight hundred sixty-four".