15116516064 has 72 divisors (see below), whose sum is σ = 46294341912. Its totient is φ = 4651234560.

The previous prime is 15116516029. The next prime is 15116516119. The reversal of 15116516064 is 46061561151.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2015022 + ... + 2022509.

It is an arithmetic number, because the mean of its divisors is an integer number (642976971).

Almost surely, 2^15116516064 is an apocalyptic number.

It is an amenable number.

15116516064 is an abundant number, since it is smaller than the sum of its proper divisors (31177825848).

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

15116516064 is a wasteful number, since it uses less digits than its factorization.

15116516064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037560 (or 4037549 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 15116516064 in words is "fifteen billion, one hundred sixteen million, five hundred sixteen thousand, sixty-four".