866918670662 has 32 divisors (see below), whose sum is σ = 1440354700800. Its totient is φ = 388023092800.

The previous prime is 866918670649. The next prime is 866918670677. The reversal of 866918670662 is 266076819668.

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, 920639 + ... + 1606677.

It is an arithmetic number, because the mean of its divisors is an integer number (45011084400).

Almost surely, 2^866918670662 is an apocalyptic number.

866918670662 is a deficient number, since it is larger than the sum of its proper divisors (573436030138).

866918670662 is a wasteful number, since it uses less digits than its factorization.

866918670662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686932.

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 866918670662 in words is "eight hundred sixty-six billion, nine hundred eighteen million, six hundred seventy thousand, six hundred sixty-two".