15897175056 has 405 divisors, whose sum is σ = 55321082271. Its totient is φ = 4248526464.

The previous prime is 15897175013. The next prime is 15897175067. The reversal of 15897175056 is 65057179851.

It is a happy number.

The square root of 15897175056 is 126084.

It is a perfect power (a square), and thus also a powerful number.

15897175056 is a `hidden beast` number, since 1 + 589 + 7 + 1 + 7 + 5 + 0 + 56 = 666.

It is a super-2 number, since 2×15897175056² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15897174993 and 15897175011.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 201230025 + ... + 201230103.

Almost surely, 2^15897175056 is an apocalyptic number.

15897175056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

15897175056 is the 126084-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15897175056

15897175056 is an abundant number, since it is smaller than the sum of its proper divisors (39423907215).

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

15897175056 is a wasteful number, since it uses less digits than its factorization.

15897175056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 54.

The spelling of 15897175056 in words is "fifteen billion, eight hundred ninety-seven million, one hundred seventy-five thousand, fifty-six".