15397352210916 has 405 divisors, whose sum is σ = 44784685846593. Its totient is φ = 4610793507840.

The previous prime is 15397352210887. The next prime is 15397352210917. The reversal of 15397352210916 is 61901225379351.

It is a happy number.

The square root of 15397352210916 is 3923946.

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

15397352210916 is a `hidden beast` number, since 1 + 5 + 3 + 9 + 7 + 3 + 522 + 109 + 1 + 6 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 13889112776100 + 1508239434816 = 3726810^2 + 1228104^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (15397352210917) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 37646337720 + ... + 37646338128.

Almost surely, 2^{15397352210916} is an apocalyptic number.

15397352210916 is the 3923946-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15397352210916

15397352210916 is an abundant number, since it is smaller than the sum of its proper divisors (29387333635677).

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

15397352210916 is an equidigital number, since it uses as much as digits as its factorization.

15397352210916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 54.

The spelling of 15397352210916 in words is "fifteen trillion, three hundred ninety-seven billion, three hundred fifty-two million, two hundred ten thousand, nine hundred sixteen".