668032826466 has 16 divisors (see below), whose sum is σ = 1345817958624. Its totient is φ = 221052224544.

The previous prime is 668032826441. The next prime is 668032826507. The reversal of 668032826466 is 664628230866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406345180 + ... + 406346823.

It is an arithmetic number, because the mean of its divisors is an integer number (84113622414).

Almost surely, 2^668032826466 is an apocalyptic number.

668032826466 is an abundant number, since it is smaller than the sum of its proper divisors (677785132158).

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

668032826466 is a wasteful number, since it uses less digits than its factorization.

668032826466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812692145.

The product of its (nonzero) digits is 23887872, while the sum is 57.

The spelling of 668032826466 in words is "six hundred sixty-eight billion, thirty-two million, eight hundred twenty-six thousand, four hundred sixty-six".