15264551616 has 56 divisors (see below), whose sum is σ = 40398649200. Its totient is φ = 5086774272.

The previous prime is 15264551609. The next prime is 15264551623. The reversal of 15264551616 is 61615546251.

It is an interprime number because it is at equal distance from previous prime (15264551609) and next prime (15264551623).

It is a super-2 number, since 2×15264551616² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864670 + ... + 882146.

It is an arithmetic number, because the mean of its divisors is an integer number (721404450).

Almost surely, 2^15264551616 is an apocalyptic number.

15264551616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15264551616 is an abundant number, since it is smaller than the sum of its proper divisors (25134097584).

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

15264551616 is a wasteful number, since it uses less digits than its factorization.

15264551616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22041 (or 22031 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The spelling of 15264551616 in words is "fifteen billion, two hundred sixty-four million, five hundred fifty-one thousand, six hundred sixteen".