15312130560 has 120 divisors (see below), whose sum is σ = 53030294460. Its totient is φ = 4083228672.

The previous prime is 15312130543. The next prime is 15312130597. The reversal of 15312130560 is 6503121351.

15312130560 is a `hidden beast` number, since 1 + 53 + 1 + 21 + 30 + 560 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14365460736 + 946669824 = 119856^2 + 30768^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×15312130560² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309255 + ... + 355334.

Almost surely, 2^15312130560 is an apocalyptic number.

15312130560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15312130560 is an abundant number, since it is smaller than the sum of its proper divisors (37718163900).

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

15312130560 is an equidigital number, since it uses as much as digits as its factorization.

15312130560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664618 (or 664599 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 15312130560 in words is "fifteen billion, three hundred twelve million, one hundred thirty thousand, five hundred sixty".