6668952659 has 2 divisors, whose sum is σ = 6668952660. Its totient is φ = 6668952658.

The previous prime is 6668952643. The next prime is 6668952677. The reversal of 6668952659 is 9562598666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6668952659 - 2⁴ = 6668952643 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6668952679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3334476329 + 3334476330.

It is an arithmetic number, because the mean of its divisors is an integer number (3334476330).

Almost surely, 2^6668952659 is an apocalyptic number.

6668952659 is a deficient number, since it is larger than the sum of its proper divisors (1).

6668952659 is an equidigital number, since it uses as much as digits as its factorization.

6668952659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41990400, while the sum is 62.

The square root of 6668952659 is about 81663.6556798678. The cubic root of 6668952659 is about 1882.2871532933.

The spelling of 6668952659 in words is "six billion, six hundred sixty-eight million, nine hundred fifty-two thousand, six hundred fifty-nine".