13116957697 has 2 divisors, whose sum is σ = 13116957698. Its totient is φ = 13116957696.

The previous prime is 13116957641. The next prime is 13116957709. The reversal of 13116957697 is 79675961131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12117386241 + 999571456 = 110079^2 + 31616^2 .

It is a cyclic number.

It is not a de Polignac number, because 13116957697 - 2¹⁵ = 13116924929 is a prime.

It is not a weakly prime, because it can be changed into another prime (13116957617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6558478848 + 6558478849.

It is an arithmetic number, because the mean of its divisors is an integer number (6558478849).

Almost surely, 2^13116957697 is an apocalyptic number.

It is an amenable number.

13116957697 is a deficient number, since it is larger than the sum of its proper divisors (1).

13116957697 is an equidigital number, since it uses as much as digits as its factorization.

13116957697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2143260, while the sum is 55.

The spelling of 13116957697 in words is "thirteen billion, one hundred sixteen million, nine hundred fifty-seven thousand, six hundred ninety-seven".