13660656131 has 2 divisors, whose sum is σ = 13660656132. Its totient is φ = 13660656130.

The previous prime is 13660656101. The next prime is 13660656167. The reversal of 13660656131 is 13165606631.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (13165606631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13660656131 - 2¹⁸ = 13660393987 is a prime.

It is a super-2 number, since 2×13660656131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13660656101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6830328065 + 6830328066.

It is an arithmetic number, because the mean of its divisors is an integer number (6830328066).

Almost surely, 2^13660656131 is an apocalyptic number.

13660656131 is a deficient number, since it is larger than the sum of its proper divisors (1).

13660656131 is an equidigital number, since it uses as much as digits as its factorization.

13660656131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 13660656131 in words is "thirteen billion, six hundred sixty million, six hundred fifty-six thousand, one hundred thirty-one".