13971366659 has 2 divisors, whose sum is σ = 13971366660. Its totient is φ = 13971366658.

The previous prime is 13971366571. The next prime is 13971366667. The reversal of 13971366659 is 95666317931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13971366659 - 2⁸ = 13971366403 is a prime.

It is not a weakly prime, because it can be changed into another prime (13971366359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985683329 + 6985683330.

It is an arithmetic number, because the mean of its divisors is an integer number (6985683330).

Almost surely, 2^13971366659 is an apocalyptic number.

13971366659 is a deficient number, since it is larger than the sum of its proper divisors (1).

13971366659 is an equidigital number, since it uses as much as digits as its factorization.

13971366659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5511240, while the sum is 56.

The spelling of 13971366659 in words is "thirteen billion, nine hundred seventy-one million, three hundred sixty-six thousand, six hundred fifty-nine".