664242204604 has 12 divisors (see below), whose sum is σ = 1268098754328. Its totient is φ = 301928274800.

The previous prime is 664242204557. The next prime is 664242204611. The reversal of 664242204604 is 406402242466.

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, 7548206827 + ... + 7548206914.

It is an arithmetic number, because the mean of its divisors is an integer number (105674896194).

Almost surely, 2^664242204604 is an apocalyptic number.

It is an amenable number.

664242204604 is a deficient number, since it is larger than the sum of its proper divisors (603856549724).

664242204604 is a wasteful number, since it uses less digits than its factorization.

664242204604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15096413756 (or 15096413754 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 664242204604 in words is "six hundred sixty-four billion, two hundred forty-two million, two hundred four thousand, six hundred four".