6640013033713 has 2 divisors, whose sum is σ = 6640013033714. Its totient is φ = 6640013033712.

The previous prime is 6640013033701. The next prime is 6640013033729. The reversal of 6640013033713 is 3173303100466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5506827235569 + 1133185798144 = 2346663^2 + 1064512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6640013033713 is a prime.

It is not a weakly prime, because it can be changed into another prime (6640013031713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3320006516856 + 3320006516857.

It is an arithmetic number, because the mean of its divisors is an integer number (3320006516857).

Almost surely, 2^{6640013033713} is an apocalyptic number.

It is an amenable number.

6640013033713 is a deficient number, since it is larger than the sum of its proper divisors (1).

6640013033713 is an equidigital number, since it uses as much as digits as its factorization.

6640013033713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 37.

The spelling of 6640013033713 in words is "six trillion, six hundred forty billion, thirteen million, thirty-three thousand, seven hundred thirteen".