664426602101359 has 2 divisors, whose sum is σ = 664426602101360. Its totient is φ = 664426602101358.

The previous prime is 664426602101309. The next prime is 664426602101419. The reversal of 664426602101359 is 953101206624466.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664426602101359 - 2⁷ = 664426602101231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664426602101309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332213301050679 + 332213301050680.

It is an arithmetic number, because the mean of its divisors is an integer number (332213301050680).

Almost surely, 2^{664426602101359} is an apocalyptic number.

664426602101359 is a deficient number, since it is larger than the sum of its proper divisors (1).

664426602101359 is an equidigital number, since it uses as much as digits as its factorization.

664426602101359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 664426602101359 in words is "six hundred sixty-four trillion, four hundred twenty-six billion, six hundred two million, one hundred one thousand, three hundred fifty-nine".