13646666339 has 2 divisors, whose sum is σ = 13646666340. Its totient is φ = 13646666338.

The previous prime is 13646666321. The next prime is 13646666357. The reversal of 13646666339 is 93366664631.

It is a balanced prime because it is at equal distance from previous prime (13646666321) and next prime (13646666357).

It is a cyclic number.

It is not a de Polignac number, because 13646666339 - 2²⁴ = 13629889123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13646666389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6823333169 + 6823333170.

It is an arithmetic number, because the mean of its divisors is an integer number (6823333170).

Almost surely, 2^13646666339 is an apocalyptic number.

13646666339 is a deficient number, since it is larger than the sum of its proper divisors (1).

13646666339 is an equidigital number, since it uses as much as digits as its factorization.

13646666339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7558272, while the sum is 53.

The spelling of 13646666339 in words is "thirteen billion, six hundred forty-six million, six hundred sixty-six thousand, three hundred thirty-nine".