13016656791 has 12 divisors (see below), whose sum is σ = 19059397968. Its totient is φ = 8558897184.

The previous prime is 13016656771. The next prime is 13016656799. The reversal of 13016656791 is 19765661031.

It is not a de Polignac number, because 13016656791 - 2⁶ = 13016656727 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13016656799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9905475 + ... + 9906788.

It is an arithmetic number, because the mean of its divisors is an integer number (1588283164).

Almost surely, 2^13016656791 is an apocalyptic number.

13016656791 is a deficient number, since it is larger than the sum of its proper divisors (6042741177).

13016656791 is a wasteful number, since it uses less digits than its factorization.

13016656791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19812342 (or 19812339 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 13016656791 in words is "thirteen billion, sixteen million, six hundred fifty-six thousand, seven hundred ninety-one".