6636122239 has 2 divisors, whose sum is σ = 6636122240. Its totient is φ = 6636122238.

The previous prime is 6636122231. The next prime is 6636122263. The reversal of 6636122239 is 9322216366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6636122239 - 2³ = 6636122231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6636122231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3318061119 + 3318061120.

It is an arithmetic number, because the mean of its divisors is an integer number (3318061120).

Almost surely, 2^6636122239 is an apocalyptic number.

6636122239 is a deficient number, since it is larger than the sum of its proper divisors (1).

6636122239 is an equidigital number, since it uses as much as digits as its factorization.

6636122239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 40.

The square root of 6636122239 is about 81462.3976997977. The cubic root of 6636122239 is about 1879.1933161081.

The spelling of 6636122239 in words is "six billion, six hundred thirty-six million, one hundred twenty-two thousand, two hundred thirty-nine".