664463613150776 has 16 divisors (see below), whose sum is σ = 1246441036633800. Its totient is φ = 332079336715104.

The previous prime is 664463613150749. The next prime is 664463613150829. The reversal of 664463613150776 is 677051316364466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19058714015 + ... + 19058748878.

Almost surely, 2^{664463613150776} is an apocalyptic number.

It is an amenable number.

664463613150776 is a deficient number, since it is larger than the sum of its proper divisors (581977423483024).

664463613150776 is a wasteful number, since it uses less digits than its factorization.

664463613150776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38117465078 (or 38117465074 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 65.

The spelling of 664463613150776 in words is "six hundred sixty-four trillion, four hundred sixty-three billion, six hundred thirteen million, one hundred fifty thousand, seven hundred seventy-six".