668032995984 has 20 divisors (see below), whose sum is σ = 1725751906416. Its totient is φ = 222677665312.

The previous prime is 668032995961. The next prime is 668032996019. The reversal of 668032995984 is 489599230866.

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 3 ways as a sum of consecutive naturals, for example, 6958676994 + ... + 6958677089.

Almost surely, 2^668032995984 is an apocalyptic number.

It is an amenable number.

668032995984 is an abundant number, since it is smaller than the sum of its proper divisors (1057718910432).

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

668032995984 is a wasteful number, since it uses less digits than its factorization.

668032995984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13917354094 (or 13917354088 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 69.

The spelling of 668032995984 in words is "six hundred sixty-eight billion, thirty-two million, nine hundred ninety-five thousand, nine hundred eighty-four".