11615205612 has 48 divisors (see below), whose sum is σ = 28732562432. Its totient is φ = 3645570240.

The previous prime is 11615205587. The next prime is 11615205631. The reversal of 11615205612 is 21650251611.

It is a self number, because there is not a number n which added to its sum of digits gives 11615205612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408178 + ... + 435705.

Almost surely, 2^11615205612 is an apocalyptic number.

11615205612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11615205612 is an abundant number, since it is smaller than the sum of its proper divisors (17117356820).

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

11615205612 is a wasteful number, since it uses less digits than its factorization.

11615205612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843958 (or 843956 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 11615205612 in words is "eleven billion, six hundred fifteen million, two hundred five thousand, six hundred twelve".