664094613804 has 12 divisors (see below), whose sum is σ = 1549554098904. Its totient is φ = 221364871264.

The previous prime is 664094613797. The next prime is 664094613811. The reversal of 664094613804 is 408316490466.

It is an interprime number because it is at equal distance from previous prime (664094613797) and next prime (664094613811).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

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, 27670608897 + ... + 27670608920.

It is an arithmetic number, because the mean of its divisors is an integer number (129129508242).

Almost surely, 2^664094613804 is an apocalyptic number.

It is an amenable number.

664094613804 is an abundant number, since it is smaller than the sum of its proper divisors (885459485100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664094613804 is a wasteful number, since it uses less digits than its factorization.

664094613804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55341217824 (or 55341217822 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 664094613804 in words is "six hundred sixty-four billion, ninety-four million, six hundred thirteen thousand, eight hundred four".