15157945920 has 112 divisors (see below), whose sum is σ = 51828557760. Its totient is φ = 3731183616.

The previous prime is 15157945919. The next prime is 15157945931. The reversal of 15157945920 is 2954975151.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 15157945920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594810 + ... + 619769.

It is an arithmetic number, because the mean of its divisors is an integer number (462754980).

Almost surely, 2^15157945920 is an apocalyptic number.

15157945920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15157945920 is an abundant number, since it is smaller than the sum of its proper divisors (36670611840).

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

15157945920 is a wasteful number, since it uses less digits than its factorization.

15157945920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214612 (or 1214602 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 48.

The spelling of 15157945920 in words is "fifteen billion, one hundred fifty-seven million, nine hundred forty-five thousand, nine hundred twenty".