315566899557552 has 160 divisors (see below), whose sum is σ = 916014890818560. Its totient is φ = 104005196881920.

The previous prime is 315566899557433. The next prime is 315566899557593. The reversal of 315566899557552 is 255755998665513.

315566899557552 is a `hidden beast` number, since 3 + 1 + 5 + 5 + 6 + 6 + 8 + 9 + 9 + 5 + 57 + 552 = 666.

It is a super-2 number, since 2×315566899557552² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22989933 + ... + 34053939.

It is an arithmetic number, because the mean of its divisors is an integer number (5725093067616).

Almost surely, 2^{315566899557552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315566899557552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458007445409280).

315566899557552 is an abundant number, since it is smaller than the sum of its proper divisors (600447991261008).

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

315566899557552 is a wasteful number, since it uses less digits than its factorization.

315566899557552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11064768 (or 11064756 counting only the distinct ones).

The product of its digits is 15309000000, while the sum is 81.

The spelling of 315566899557552 in words is "three hundred fifteen trillion, five hundred sixty-six billion, eight hundred ninety-nine million, five hundred fifty-seven thousand, five hundred fifty-two".