205318164 has 12 divisors (see below), whose sum is σ = 479075744. Its totient is φ = 68439384.

The previous prime is 205318159. The next prime is 205318181. The reversal of 205318164 is 461813502.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8554912 + ... + 8554935.

Almost surely, 2^205318164 is an apocalyptic number.

It is an amenable number.

205318164 is an abundant number, since it is smaller than the sum of its proper divisors (273757580).

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

205318164 is a wasteful number, since it uses less digits than its factorization.

205318164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17109854 (or 17109852 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 205318164 is about 14328.9275244172. The cubic root of 205318164 is about 589.9417389564.

The spelling of 205318164 in words is "two hundred five million, three hundred eighteen thousand, one hundred sixty-four".