86541718266566 has 16 divisors (see below), whose sum is σ = 137448794782944. Its totient is φ = 40725460132224.

The previous prime is 86541718266547. The next prime is 86541718266709. The reversal of 86541718266566 is 66566281714568.

It is a self number, because there is not a number n which added to its sum of digits gives 86541718266566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36808271 + ... + 39088773.

It is an arithmetic number, because the mean of its divisors is an integer number (8590549673934).

Almost surely, 2^{86541718266566} is an apocalyptic number.

86541718266566 is a deficient number, since it is larger than the sum of its proper divisors (50907076516378).

86541718266566 is a wasteful number, since it uses less digits than its factorization.

86541718266566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396655.

The product of its digits is 696729600, while the sum is 71.

The spelling of 86541718266566 in words is "eighty-six trillion, five hundred forty-one billion, seven hundred eighteen million, two hundred sixty-six thousand, five hundred sixty-six".