866698464896668 has 24 divisors (see below), whose sum is σ = 1596550936780800. Its totient is φ = 410541086760048.

The previous prime is 866698464896617. The next prime is 866698464896681.

866698464896668 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134960643 + ... + 141236581.

It is an arithmetic number, because the mean of its divisors is an integer number (66522955699200).

Almost surely, 2^{866698464896668} is an apocalyptic number.

It is an amenable number.

866698464896668 is a deficient number, since it is larger than the sum of its proper divisors (729852471884132).

866698464896668 is a wasteful number, since it uses less digits than its factorization.

866698464896668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8093049 (or 8093047 counting only the distinct ones).

The product of its digits is 1486016741376, while the sum is 100.

The spelling of 866698464896668 in words is "eight hundred sixty-six trillion, six hundred ninety-eight billion, four hundred sixty-four million, eight hundred ninety-six thousand, six hundred sixty-eight".