664415767177304 has 128 divisors (see below), whose sum is σ = 1258030822164480. Its totient is φ = 328964644915200.

The previous prime is 664415767177219. The next prime is 664415767177307. The reversal of 664415767177304 is 403771767514466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664415767177307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430599977957 + ... + 430599979499.

It is an arithmetic number, because the mean of its divisors is an integer number (9828365798160).

Almost surely, 2^{664415767177304} is an apocalyptic number.

It is an amenable number.

664415767177304 is a deficient number, since it is larger than the sum of its proper divisors (593615054987176).

664415767177304 is a wasteful number, since it uses less digits than its factorization.

664415767177304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 497871360, while the sum is 68.

The spelling of 664415767177304 in words is "six hundred sixty-four trillion, four hundred fifteen billion, seven hundred sixty-seven million, one hundred seventy-seven thousand, three hundred four".