164573604 has 36 divisors (see below), whose sum is σ = 448007196. Its totient is φ = 50637888.

The previous prime is 164573593. The next prime is 164573627. The reversal of 164573604 is 406375461.

It is a happy number.

164573604 is a `hidden beast` number, since 1 + 6 + 45 + 7 + 3 + 604 = 666.

164573604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 113422500 + 51151104 = 10650^2 + 7152^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×164573604² = 54168942267097632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175359 + ... + 176294.

Almost surely, 2^164573604 is an apocalyptic number.

It is an amenable number.

164573604 is an abundant number, since it is smaller than the sum of its proper divisors (283433592).

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

164573604 is a wasteful number, since it uses less digits than its factorization.

164573604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351676 (or 351671 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 164573604 is about 12828.6244001452. The cubic root of 164573604 is about 548.0077831136.

The spelling of 164573604 in words is "one hundred sixty-four million, five hundred seventy-three thousand, six hundred four".