15116138116915 has 32 divisors (see below), whose sum is σ = 20187810049536. Its totient is φ = 10773360322560.

The previous prime is 15116138116837. The next prime is 15116138116943. The reversal of 15116138116915 is 51961183161151.

It is not a de Polignac number, because 15116138116915 - 2⁹ = 15116138116403 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9915927 + ... + 11338336.

It is an arithmetic number, because the mean of its divisors is an integer number (630869064048).

Almost surely, 2^{15116138116915} is an apocalyptic number.

15116138116915 is a deficient number, since it is larger than the sum of its proper divisors (5071671932621).

15116138116915 is a wasteful number, since it uses less digits than its factorization.

15116138116915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21254539.

The product of its digits is 194400, while the sum is 49.

The spelling of 15116138116915 in words is "fifteen trillion, one hundred sixteen billion, one hundred thirty-eight million, one hundred sixteen thousand, nine hundred fifteen".