866373373668 has 48 divisors (see below), whose sum is σ = 2206359429120. Its totient is φ = 262412935200.

The previous prime is 866373373667. The next prime is 866373373681.

866373373668 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 866373373599 and 866373373608.

It is not an unprimeable number, because it can be changed into a prime (866373373667) 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, 1275928 + ... + 1833231.

It is an arithmetic number, because the mean of its divisors is an integer number (45965821440).

Almost surely, 2^866373373668 is an apocalyptic number.

It is an amenable number.

866373373668 is an abundant number, since it is smaller than the sum of its proper divisors (1339986055452).

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

866373373668 is a wasteful number, since it uses less digits than its factorization.

866373373668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111288 (or 3111286 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 66.

The spelling of 866373373668 in words is "eight hundred sixty-six billion, three hundred seventy-three million, three hundred seventy-three thousand, six hundred sixty-eight".