668880956094 has 32 divisors (see below), whose sum is σ = 1467849073824. Its totient is φ = 201926325120.

The previous prime is 668880956087. The next prime is 668880956111. The reversal of 668880956094 is 490659088866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80895837 + ... + 80904104.

It is an arithmetic number, because the mean of its divisors is an integer number (45870283557).

Almost surely, 2^668880956094 is an apocalyptic number.

668880956094 is an abundant number, since it is smaller than the sum of its proper divisors (798968117730).

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

668880956094 is a wasteful number, since it uses less digits than its factorization.

668880956094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161800012.

The product of its (nonzero) digits is 179159040, while the sum is 69.

The spelling of 668880956094 in words is "six hundred sixty-eight billion, eight hundred eighty million, nine hundred fifty-six thousand, ninety-four".