664130659 has 2 divisors, whose sum is σ = 664130660. Its totient is φ = 664130658.

The previous prime is 664130629. The next prime is 664130699. The reversal of 664130659 is 956031466.

It is an a-pointer prime, because the next prime (664130699) can be obtained adding 664130659 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664130659 - 2⁵ = 664130627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (664130629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332065329 + 332065330.

It is an arithmetic number, because the mean of its divisors is an integer number (332065330).

Almost surely, 2^664130659 is an apocalyptic number.

664130659 is a deficient number, since it is larger than the sum of its proper divisors (1).

664130659 is an equidigital number, since it uses as much as digits as its factorization.

664130659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 664130659 is about 25770.7326050308. The cubic root of 664130659 is about 872.4713538103.

The spelling of 664130659 in words is "six hundred sixty-four million, one hundred thirty thousand, six hundred fifty-nine".