8668664668668 has 48 divisors (see below), whose sum is σ = 20471044277376. Its totient is φ = 2854676456640.

The previous prime is 8668664668661. The next prime is 8668664668673.

8668664668668 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8668664668661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66879403 + ... + 67008893.

It is an arithmetic number, because the mean of its divisors is an integer number (426480089112).

Almost surely, 2^{8668664668668} is an apocalyptic number.

It is an amenable number.

8668664668668 is an abundant number, since it is smaller than the sum of its proper divisors (11802379608708).

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

8668664668668 is a wasteful number, since it uses less digits than its factorization.

8668664668668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196794 (or 196792 counting only the distinct ones).

The product of its digits is 27518828544, while the sum is 84.

The spelling of 8668664668668 in words is "eight trillion, six hundred sixty-eight billion, six hundred sixty-four million, six hundred sixty-eight thousand, six hundred sixty-eight".