664463664045157 has 16 divisors (see below), whose sum is σ = 671143345600000. Its totient is φ = 657788414108544.

The previous prime is 664463664045149. The next prime is 664463664045173. The reversal of 664463664045157 is 751540466364466.

It is a cyclic number.

It is not a de Polignac number, because 664463664045157 - 2³ = 664463664045149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 664463664045092 and 664463664045101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664463664045127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4085179969 + ... + 4085342617.

It is an arithmetic number, because the mean of its divisors is an integer number (41946459100000).

Almost surely, 2^{664463664045157} is an apocalyptic number.

It is an amenable number.

664463664045157 is a deficient number, since it is larger than the sum of its proper divisors (6679681554843).

664463664045157 is a wasteful number, since it uses less digits than its factorization.

664463664045157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176020.

The product of its (nonzero) digits is 1045094400, while the sum is 67.

The spelling of 664463664045157 in words is "six hundred sixty-four trillion, four hundred sixty-three billion, six hundred sixty-four million, forty-five thousand, one hundred fifty-seven".