664455704725151 has 2 divisors, whose sum is σ = 664455704725152. Its totient is φ = 664455704725150.

The previous prime is 664455704725093. The next prime is 664455704725171. The reversal of 664455704725151 is 151527407554466.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664455704725151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664455704725171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332227852362575 + 332227852362576.

It is an arithmetic number, because the mean of its divisors is an integer number (332227852362576).

Almost surely, 2^{664455704725151} is an apocalyptic number.

664455704725151 is a deficient number, since it is larger than the sum of its proper divisors (1).

664455704725151 is an equidigital number, since it uses as much as digits as its factorization.

664455704725151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120000, while the sum is 62.

The spelling of 664455704725151 in words is "six hundred sixty-four trillion, four hundred fifty-five billion, seven hundred four million, seven hundred twenty-five thousand, one hundred fifty-one".