668043584327 has 16 divisors (see below), whose sum is σ = 809373632832. Its totient is φ = 538269411840.

The previous prime is 668043584311. The next prime is 668043584339. The reversal of 668043584327 is 723485340866.

It is a cyclic number.

It is not a de Polignac number, because 668043584327 - 2⁴ = 668043584311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668043584347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3321188 + ... + 3516585.

It is an arithmetic number, because the mean of its divisors is an integer number (50585852052).

Almost surely, 2^668043584327 is an apocalyptic number.

668043584327 is a deficient number, since it is larger than the sum of its proper divisors (141330048505).

668043584327 is a wasteful number, since it uses less digits than its factorization.

668043584327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6838618.

The product of its (nonzero) digits is 23224320, while the sum is 56.

The spelling of 668043584327 in words is "six hundred sixty-eight billion, forty-three million, five hundred eighty-four thousand, three hundred twenty-seven".