13397136516 has 81 divisors (see below), whose sum is σ = 34383614629. Its totient is φ = 4398348000.

The previous prime is 13397136499. The next prime is 13397136523. The reversal of 13397136516 is 61563179331.

The square root of 13397136516 is 115746.

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

13397136516 is a `hidden beast` number, since 1 + 3 + 39 + 71 + 36 + 516 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12871810116 + 525326400 = 113454^2 + 22920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 70141981 + ... + 70142171.

Almost surely, 2^13397136516 is an apocalyptic number.

13397136516 is the 115746-th square number.

It is an amenable number.

13397136516 is an abundant number, since it is smaller than the sum of its proper divisors (20986478113).

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

13397136516 is a wasteful number, since it uses less digits than its factorization.

13397136516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 297 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The spelling of 13397136516 in words is "thirteen billion, three hundred ninety-seven million, one hundred thirty-six thousand, five hundred sixteen".