13336913721648 has 40 divisors (see below), whose sum is σ = 37585847762496. Its totient is φ = 4041489006400.

The previous prime is 13336913721647. The next prime is 13336913721757. The reversal of 13336913721648 is 84612731963331.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13336913721647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12629652618 + ... + 12629653673.

Almost surely, 2^{13336913721648} is an apocalyptic number.

It is an amenable number.

13336913721648 is an abundant number, since it is smaller than the sum of its proper divisors (24248934040848).

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

13336913721648 is a wasteful number, since it uses less digits than its factorization.

13336913721648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25259306313 (or 25259306307 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 57.

The spelling of 13336913721648 in words is "thirteen trillion, three hundred thirty-six billion, nine hundred thirteen million, seven hundred twenty-one thousand, six hundred forty-eight".