164563404 has 24 divisors (see below), whose sum is σ = 387507120. Its totient is φ = 54350784.

The previous prime is 164563397. The next prime is 164563433. The reversal of 164563404 is 404365461.

164563404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×164563404² = 54162227872134432, which contains 22 as substring.

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, 61599 + ... + 64214.

It is an arithmetic number, because the mean of its divisors is an integer number (16146130).

Almost surely, 2^164563404 is an apocalyptic number.

It is an amenable number.

164563404 is an abundant number, since it is smaller than the sum of its proper divisors (222943716).

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

164563404 is a wasteful number, since it uses less digits than its factorization.

164563404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125929 (or 125927 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 164563404 is about 12828.2268455153. The cubic root of 164563404 is about 547.9964613407.

The spelling of 164563404 in words is "one hundred sixty-four million, five hundred sixty-three thousand, four hundred four".