205112559604 has 24 divisors (see below), whose sum is σ = 369037781280. Its totient is φ = 99679051296.

The previous prime is 205112559593. The next prime is 205112559689. The reversal of 205112559604 is 406955211502.

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, 591574 + ... + 871885.

It is an arithmetic number, because the mean of its divisors is an integer number (15376574220).

Almost surely, 2^205112559604 is an apocalyptic number.

It is an amenable number.

205112559604 is a deficient number, since it is larger than the sum of its proper divisors (163925221676).

205112559604 is a wasteful number, since it uses less digits than its factorization.

205112559604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464447 (or 1464445 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 205112559604 in words is "two hundred five billion, one hundred twelve million, five hundred fifty-nine thousand, six hundred four".