15897817148660 has 48 divisors (see below), whose sum is σ = 33549925265472. Its totient is φ = 6327832665600.

The previous prime is 15897817148641. The next prime is 15897817148683. The reversal of 15897817148660 is 6684171879851.

It is a happy number.

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, 4945199 + ... + 7500041.

It is an arithmetic number, because the mean of its divisors is an integer number (698956776364).

Almost surely, 2^{15897817148660} is an apocalyptic number.

15897817148660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15897817148660 is an abundant number, since it is smaller than the sum of its proper divisors (17652108116812).

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

15897817148660 is a wasteful number, since it uses less digits than its factorization.

15897817148660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556384 (or 2556382 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 71.

The spelling of 15897817148660 in words is "fifteen trillion, eight hundred ninety-seven billion, eight hundred seventeen million, one hundred forty-eight thousand, six hundred sixty".