668052315364 has 24 divisors (see below), whose sum is σ = 1337860395648. Its totient is φ = 285931899840.

The previous prime is 668052315353. The next prime is 668052315451. The reversal of 668052315364 is 463513250866.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15654784 + ... + 15697399.

It is an arithmetic number, because the mean of its divisors is an integer number (55744183152).

Almost surely, 2^668052315364 is an apocalyptic number.

It is an amenable number.

668052315364 is an abundant number, since it is smaller than the sum of its proper divisors (669808080284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

668052315364 is a wasteful number, since it uses less digits than its factorization.

668052315364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31352955 (or 31352953 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 668052315364 in words is "six hundred sixty-eight billion, fifty-two million, three hundred fifteen thousand, three hundred sixty-four".