12617111715816 has 64 divisors (see below), whose sum is σ = 33006319787520. Its totient is φ = 4014282101760.

The previous prime is 12617111715809. The next prime is 12617111715907. The reversal of 12617111715816 is 61851711171621.

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, 116099685 + ... + 116208308.

It is an arithmetic number, because the mean of its divisors is an integer number (515723746680).

Almost surely, 2^{12617111715816} is an apocalyptic number.

It is an amenable number.

12617111715816 is an abundant number, since it is smaller than the sum of its proper divisors (20389208071704).

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

12617111715816 is a wasteful number, since it uses less digits than its factorization.

12617111715816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232308106 (or 232308102 counting only the distinct ones).

The product of its digits is 141120, while the sum is 48.

The spelling of 12617111715816 in words is "twelve trillion, six hundred seventeen billion, one hundred eleven million, seven hundred fifteen thousand, eight hundred sixteen".