866441063342164 has 24 divisors (see below), whose sum is σ = 1589376289773888. Its totient is φ = 412825010324160.

The previous prime is 866441063342147. The next prime is 866441063342237. The reversal of 866441063342164 is 461243360144668.

It is a junction number, because it is equal to n+sod(n) for n = 866441063342099 and 866441063342108.

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, 61432286152 + ... + 61432300255.

It is an arithmetic number, because the mean of its divisors is an integer number (66224012073912).

Almost surely, 2^{866441063342164} is an apocalyptic number.

It is an amenable number.

866441063342164 is a deficient number, since it is larger than the sum of its proper divisors (722935226431724).

866441063342164 is a wasteful number, since it uses less digits than its factorization.

866441063342164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122864586495 (or 122864586493 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 58.

The spelling of 866441063342164 in words is "eight hundred sixty-six trillion, four hundred forty-one billion, sixty-three million, three hundred forty-two thousand, one hundred sixty-four".