86635105656 has 32 divisors (see below), whose sum is σ = 236277561600. Its totient is φ = 26253062240.

The previous prime is 86635105633. The next prime is 86635105703. The reversal of 86635105656 is 65650153668.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 86635105599 and 86635105608.

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, 164081376 + ... + 164081903.

It is an arithmetic number, because the mean of its divisors is an integer number (7383673800).

Almost surely, 2^86635105656 is an apocalyptic number.

It is an amenable number.

86635105656 is an abundant number, since it is smaller than the sum of its proper divisors (149642455944).

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

86635105656 is a wasteful number, since it uses less digits than its factorization.

86635105656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328163299 (or 328163295 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 51.

It can be divided in two parts, 86635 and 105656, that added together give a palindrome (192291).

The spelling of 86635105656 in words is "eighty-six billion, six hundred thirty-five million, one hundred five thousand, six hundred fifty-six".