15795975136320 has 280 divisors, whose sum is σ = 56235958539288. Its totient is φ = 4208744448000.

The previous prime is 15795975136247. The next prime is 15795975136429. The reversal of 15795975136320 is 2363157959751.

15795975136320 is a `hidden beast` number, since 1 + 5 + 7 + 9 + 5 + 97 + 513 + 6 + 3 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1064380129344 + 14731595006976 = 1031688^2 + 3838176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30876210 + ... + 31383630.

Almost surely, 2^{15795975136320} is an apocalyptic number.

15795975136320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15795975136320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28117979269644).

15795975136320 is an abundant number, since it is smaller than the sum of its proper divisors (40439983402968).

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

15795975136320 is a wasteful number, since it uses less digits than its factorization.

15795975136320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508651 (or 508632 counting only the distinct ones).

The product of its (nonzero) digits is 53581500, while the sum is 63.

The spelling of 15795975136320 in words is "fifteen trillion, seven hundred ninety-five billion, nine hundred seventy-five million, one hundred thirty-six thousand, three hundred twenty".