205112802708 has 36 divisors (see below), whose sum is σ = 565614093408. Its totient is φ = 62155394640.

The previous prime is 205112802617. The next prime is 205112802709. The reversal of 205112802708 is 807208211502.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205112802709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258980416 + ... + 258981207.

Almost surely, 2^205112802708 is an apocalyptic number.

It is an amenable number.

205112802708 is an abundant number, since it is smaller than the sum of its proper divisors (360501290700).

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

205112802708 is a wasteful number, since it uses less digits than its factorization.

205112802708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517961644 (or 517961639 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 205112802708 in words is "two hundred five billion, one hundred twelve million, eight hundred two thousand, seven hundred eight".