15000051665616 has 40 divisors (see below), whose sum is σ = 39406915400160. Its totient is φ = 4915271166336.

The previous prime is 15000051665609. The next prime is 15000051665617. The reversal of 15000051665616 is 61656615000051.

It is a super-2 number, since 2×15000051665616² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15000051665617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2648311375 + ... + 2648317038.

It is an arithmetic number, because the mean of its divisors is an integer number (985172885004).

Almost surely, 2^{15000051665616} is an apocalyptic number.

15000051665616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15000051665616 is an abundant number, since it is smaller than the sum of its proper divisors (24406863734544).

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

15000051665616 is a wasteful number, since it uses less digits than its factorization.

15000051665616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296628483 (or 5296628477 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

Adding to 15000051665616 its reverse (61656615000051), we get a palindrome (76656666665667).

The spelling of 15000051665616 in words is "fifteen trillion, fifty-one million, six hundred sixty-five thousand, six hundred sixteen".