15620252043312 has 320 divisors, whose sum is σ = 51341959618560. Its totient is φ = 4454149222656.

The previous prime is 15620252043293. The next prime is 15620252043329. The reversal of 15620252043312 is 21334025202651.

15620252043312 is a `hidden beast` number, since 1 + 5 + 6 + 202 + 5 + 2 + 0 + 433 + 12 = 666.

It is a super-2 number, since 2×15620252043312² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5572689303 + ... + 5572692105.

It is an arithmetic number, because the mean of its divisors is an integer number (160443623808).

Almost surely, 2^{15620252043312} is an apocalyptic number.

15620252043312 is a gapful number since it is divisible by the number (12) 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 15620252043312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25670979809280).

15620252043312 is an abundant number, since it is smaller than the sum of its proper divisors (35721707575248).

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

15620252043312 is a wasteful number, since it uses less digits than its factorization.

15620252043312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797 (or 5785 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 15620252043312 its reverse (21334025202651), we get a palindrome (36954277245963).

The spelling of 15620252043312 in words is "fifteen trillion, six hundred twenty billion, two hundred fifty-two million, forty-three thousand, three hundred twelve".