15151120656 has 120 divisors (see below), whose sum is σ = 45635248800. Its totient is φ = 4318949376.

The previous prime is 15151120631. The next prime is 15151120667. The reversal of 15151120656 is 65602115151.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1048875 + ... + 1063221.

It is an arithmetic number, because the mean of its divisors is an integer number (380293740).

Almost surely, 2^15151120656 is an apocalyptic number.

15151120656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15151120656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22817624400).

15151120656 is an abundant number, since it is smaller than the sum of its proper divisors (30484128144).

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

15151120656 is a wasteful number, since it uses less digits than its factorization.

15151120656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14821 (or 14808 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 15151120656 in words is "fifteen billion, one hundred fifty-one million, one hundred twenty thousand, six hundred fifty-six".