668929360023 has 12 divisors (see below), whose sum is σ = 966271180888. Its totient is φ = 445934499120.

The previous prime is 668929360019. The next prime is 668929360069. The reversal of 668929360023 is 320063929866.

668929360023 is a `hidden beast` number, since 6 + 6 + 8 + 9 + 2 + 9 + 3 + 600 + 23 = 666.

668929360023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 668929360023 - 2² = 668929360019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668929360423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1301965 + ... + 1741542.

Almost surely, 2^668929360023 is an apocalyptic number.

668929360023 is a deficient number, since it is larger than the sum of its proper divisors (297341820865).

668929360023 is a wasteful number, since it uses less digits than its factorization.

668929360023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067934 (or 3067931 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 668929360023 in words is "six hundred sixty-eight billion, nine hundred twenty-nine million, three hundred sixty thousand, twenty-three".