86685564668 has 6 divisors (see below), whose sum is σ = 151699738176. Its totient is φ = 43342782332.

The previous prime is 86685564521. The next prime is 86685564677. The reversal of 86685564668 is 86646558668.

It is a junction number, because it is equal to n+sod(n) for n = 86685564598 and 86685564607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10835695580 + ... + 10835695587.

It is an arithmetic number, because the mean of its divisors is an integer number (25283289696).

Almost surely, 2^86685564668 is an apocalyptic number.

It is an amenable number.

86685564668 is a deficient number, since it is larger than the sum of its proper divisors (65014173508).

86685564668 is a wasteful number, since it uses less digits than its factorization.

86685564668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21671391171 (or 21671391169 counting only the distinct ones).

The product of its digits is 398131200, while the sum is 68.

The spelling of 86685564668 in words is "eighty-six billion, six hundred eighty-five million, five hundred sixty-four thousand, six hundred sixty-eight".