866441084143164 has 24 divisors (see below), whose sum is σ = 2029155995344128. Its totient is φ = 287747961522480.

The previous prime is 866441084143127. The next prime is 866441084143171. The reversal of 866441084143164 is 461341480144668.

It is a junction number, because it is equal to n+sod(n) for n = 866441084143098 and 866441084143107.

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, 133216645602 + ... + 133216652105.

It is an arithmetic number, because the mean of its divisors is an integer number (84548166472672).

Almost surely, 2^{866441084143164} is an apocalyptic number.

It is an amenable number.

866441084143164 is an abundant number, since it is smaller than the sum of its proper divisors (1162714911200964).

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

866441084143164 is a wasteful number, since it uses less digits than its factorization.

866441084143164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266433297985 (or 266433297983 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 60.

The spelling of 866441084143164 in words is "eight hundred sixty-six trillion, four hundred forty-one billion, eighty-four million, one hundred forty-three thousand, one hundred sixty-four".