86605630138866 has 64 divisors (see below), whose sum is σ = 190372818931200. Its totient is φ = 26156360847360.

The previous prime is 86605630138843. The next prime is 86605630138903. The reversal of 86605630138866 is 66883103650668.

It is a junction number, because it is equal to n+sod(n) for n = 86605630138797 and 86605630138806.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147784791 + ... + 148369658.

It is an arithmetic number, because the mean of its divisors is an integer number (2974575295800).

Almost surely, 2^{86605630138866} is an apocalyptic number.

86605630138866 is an abundant number, since it is smaller than the sum of its proper divisors (103767188792334).

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

86605630138866 is a wasteful number, since it uses less digits than its factorization.

86605630138866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296154579.

The product of its (nonzero) digits is 179159040, while the sum is 66.

The spelling of 86605630138866 in words is "eighty-six trillion, six hundred five billion, six hundred thirty million, one hundred thirty-eight thousand, eight hundred sixty-six".