164560404 has 48 divisors (see below), whose sum is σ = 389321856. Its totient is φ = 54096000.

The previous prime is 164560393. The next prime is 164560433. The reversal of 164560404 is 404065461.

It is a congruent number.

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, 356734 + ... + 357194.

It is an arithmetic number, because the mean of its divisors is an integer number (8110872).

Almost surely, 2^164560404 is an apocalyptic number.

It is an amenable number.

164560404 is an abundant number, since it is smaller than the sum of its proper divisors (224761452).

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

164560404 is a wasteful number, since it uses less digits than its factorization.

164560404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 164560404 is about 12828.1099153383. The cubic root of 164560404 is about 547.9931313185.

The spelling of 164560404 in words is "one hundred sixty-four million, five hundred sixty thousand, four hundred four".