205115039108 has 12 divisors (see below), whose sum is σ = 410230078272. Its totient is φ = 87906445320.

The previous prime is 205115039093. The next prime is 205115039131. The reversal of 205115039108 is 801930511502.

205115039108 is an admirable 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, 3662768528 + ... + 3662768583.

It is an arithmetic number, because the mean of its divisors is an integer number (34185839856).

Almost surely, 2^205115039108 is an apocalyptic number.

205115039108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

205115039108 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

205115039108 is a wasteful number, since it uses less digits than its factorization.

205115039108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7325537122 (or 7325537120 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 35.

The spelling of 205115039108 in words is "two hundred five billion, one hundred fifteen million, thirty-nine thousand, one hundred eight".