668075488327 has 16 divisors (see below), whose sum is σ = 728192733408. Its totient is φ = 609206129280.

The previous prime is 668075488313. The next prime is 668075488357. The reversal of 668075488327 is 723884570866.

It is a cyclic number.

It is not a de Polignac number, because 668075488327 - 2³⁵ = 633715749959 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 (668075488357) 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, 25948953 + ... + 25974685.

It is an arithmetic number, because the mean of its divisors is an integer number (45512045838).

Almost surely, 2^668075488327 is an apocalyptic number.

668075488327 is a deficient number, since it is larger than the sum of its proper divisors (60117245081).

668075488327 is a wasteful number, since it uses less digits than its factorization.

668075488327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49890.

The product of its (nonzero) digits is 108380160, while the sum is 64.

The spelling of 668075488327 in words is "six hundred sixty-eight billion, seventy-five million, four hundred eighty-eight thousand, three hundred twenty-seven".