15161497920 has 112 divisors (see below), whose sum is σ = 53486425920. Its totient is φ = 4043063808.

The previous prime is 15161497913. The next prime is 15161497951. The reversal of 15161497920 is 2979416151.

15161497920 is a `hidden beast` number, since 1 + 5 + 1 + 614 + 9 + 7 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 868762 + ... + 886041.

Almost surely, 2^15161497920 is an apocalyptic number.

15161497920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15161497920 is an abundant number, since it is smaller than the sum of its proper divisors (38324928000).

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

15161497920 is a wasteful number, since it uses less digits than its factorization.

15161497920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754829 (or 1754813 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 15161497920 in words is "fifteen billion, one hundred sixty-one million, four hundred ninety-seven thousand, nine hundred twenty".