205570164 has 24 divisors (see below), whose sum is σ = 479956960. Its totient is φ = 68481504.

The previous prime is 205570147. The next prime is 205570213. The reversal of 205570164 is 461075502.

205570164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 20127 + ... + 28569.

Almost surely, 2^205570164 is an apocalyptic number.

It is an amenable number.

205570164 is an abundant number, since it is smaller than the sum of its proper divisors (274386796).

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

205570164 is a wasteful number, since it uses less digits than its factorization.

205570164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10479 (or 10477 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 205570164 is about 14337.7182285048. The cubic root of 205570164 is about 590.1829979122.

The spelling of 205570164 in words is "two hundred five million, five hundred seventy thousand, one hundred sixty-four".