6662965913 has 2 divisors, whose sum is σ = 6662965914. Its totient is φ = 6662965912.

The previous prime is 6662965879. The next prime is 6662965927. The reversal of 6662965913 is 3195692666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5351946649 + 1311019264 = 73157^2 + 36208^2 .

It is a cyclic number.

It is not a de Polignac number, because 6662965913 - 2⁶ = 6662965849 is a prime.

It is a super-2 number, since 2×6662965913² = 88790229515599847138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6662965313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3331482956 + 3331482957.

It is an arithmetic number, because the mean of its divisors is an integer number (3331482957).

Almost surely, 2^6662965913 is an apocalyptic number.

It is an amenable number.

6662965913 is a deficient number, since it is larger than the sum of its proper divisors (1).

6662965913 is an equidigital number, since it uses as much as digits as its factorization.

6662965913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3149280, while the sum is 53.

The square root of 6662965913 is about 81626.9925514839. The cubic root of 6662965913 is about 1881.7237390486.

The spelling of 6662965913 in words is "six billion, six hundred sixty-two million, nine hundred sixty-five thousand, nine hundred thirteen".