6662965879 has 2 divisors, whose sum is σ = 6662965880. Its totient is φ = 6662965878.

The previous prime is 6662965877. The next prime is 6662965913. The reversal of 6662965879 is 9785692666.

6662965879 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6662965879 - 2¹ = 6662965877 is a prime.

It is a super-2 number, since 2×6662965879² = 88790228609436485282, which contains 22 as substring.

Together with 6662965877, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6662965879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6662965871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3331482939 + 3331482940.

It is an arithmetic number, because the mean of its divisors is an integer number (3331482940).

Almost surely, 2^6662965879 is an apocalyptic number.

6662965879 is a deficient number, since it is larger than the sum of its proper divisors (1).

6662965879 is an equidigital number, since it uses as much as digits as its factorization.

6662965879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 64.

The square root of 6662965879 is about 81626.9923432194. The cubic root of 6662965879 is about 1881.7237358479.

The spelling of 6662965879 in words is "six billion, six hundred sixty-two million, nine hundred sixty-five thousand, eight hundred seventy-nine".