660623340604 has 6 divisors (see below), whose sum is σ = 1156090846064. Its totient is φ = 330311670300.

The previous prime is 660623340581. The next prime is 660623340617. The reversal of 660623340604 is 406043326066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82577917572 + ... + 82577917579.

Almost surely, 2^660623340604 is an apocalyptic number.

It is an amenable number.

660623340604 is a deficient number, since it is larger than the sum of its proper divisors (495467505460).

660623340604 is a wasteful number, since it uses less digits than its factorization.

660623340604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165155835155 (or 165155835153 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 40.

The spelling of 660623340604 in words is "six hundred sixty billion, six hundred twenty-three million, three hundred forty thousand, six hundred four".