668285022696 has 128 divisors (see below), whose sum is σ = 1871190616320. Its totient is φ = 197795119104.

The previous prime is 668285022661. The next prime is 668285022703. The reversal of 668285022696 is 696220582866.

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 31 ways as a sum of consecutive naturals, for example, 197256 + ... + 1172808.

It is an arithmetic number, because the mean of its divisors is an integer number (14618676690).

Almost surely, 2^668285022696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 668285022696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935595308160).

668285022696 is an abundant number, since it is smaller than the sum of its proper divisors (1202905593624).

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

668285022696 is a wasteful number, since it uses less digits than its factorization.

668285022696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975675 (or 975671 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 60.

The spelling of 668285022696 in words is "six hundred sixty-eight billion, two hundred eighty-five million, twenty-two thousand, six hundred ninety-six".