205980904572 has 24 divisors (see below), whose sum is σ = 480635116416. Its totient is φ = 68658443568.

The previous prime is 205980904567. The next prime is 205980904573. The reversal of 205980904572 is 275409089502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205980904573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273793 + ... + 697799.

It is an arithmetic number, because the mean of its divisors is an integer number (20026463184).

Almost surely, 2^205980904572 is an apocalyptic number.

It is an amenable number.

205980904572 is an abundant number, since it is smaller than the sum of its proper divisors (274654211844).

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

205980904572 is a wasteful number, since it uses less digits than its factorization.

205980904572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464497 (or 464495 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 205980904572 in words is "two hundred five billion, nine hundred eighty million, nine hundred four thousand, five hundred seventy-two".