866868063104 has 32 divisors (see below), whose sum is σ = 1786514200200. Its totient is φ = 418488028672.

The previous prime is 866868063097. The next prime is 866868063161. The reversal of 866868063104 is 401360868668.

It is a happy number.

866868063104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×866868063104² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 866868063104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116761922 + ... + 116769345.

Almost surely, 2^866868063104 is an apocalyptic number.

It is an amenable number.

866868063104 is an abundant number, since it is smaller than the sum of its proper divisors (919646137096).

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

866868063104 is a wasteful number, since it uses less digits than its factorization.

866868063104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233531310 (or 233531298 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 866868063104 in words is "eight hundred sixty-six billion, eight hundred sixty-eight million, sixty-three thousand, one hundred four".