664415741662012 has 12 divisors (see below), whose sum is σ = 1164044340154696. Its totient is φ = 331831644474960.

The previous prime is 664415741662007. The next prime is 664415741662171. The reversal of 664415741662012 is 210266147514466.

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, 94056585039 + ... + 94056592102.

Almost surely, 2^{664415741662012} is an apocalyptic number.

It is an amenable number.

664415741662012 is a deficient number, since it is larger than the sum of its proper divisors (499628598492684).

664415741662012 is a wasteful number, since it uses less digits than its factorization.

664415741662012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188113178028 (or 188113178026 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 664415741662012 in words is "six hundred sixty-four trillion, four hundred fifteen billion, seven hundred forty-one million, six hundred sixty-two thousand, twelve".