866763322228464 has 80 divisors (see below), whose sum is σ = 2259052623690912. Its totient is φ = 286351777030144.

The previous prime is 866763322228313. The next prime is 866763322228493. The reversal of 866763322228464 is 464822223367668.

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, 121127524 + ... + 128083580.

Almost surely, 2^{866763322228464} is an apocalyptic number.

It is an amenable number.

866763322228464 is an abundant number, since it is smaller than the sum of its proper divisors (1392289301462448).

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

866763322228464 is a wasteful number, since it uses less digits than its factorization.

866763322228464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979154 (or 6979148 counting only the distinct ones).

The product of its digits is 1337720832, while the sum is 69.

The spelling of 866763322228464 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, three hundred twenty-two million, two hundred twenty-eight thousand, four hundred sixty-four".