86591168805 has 32 divisors (see below), whose sum is σ = 148148103168. Its totient is φ = 43035008000.

The previous prime is 86591168791. The next prime is 86591168813. The reversal of 86591168805 is 50886119568.

It is a happy number.

It is not a de Polignac number, because 86591168805 - 2⁴ = 86591168789 is a prime.

It is a Curzon number.

It is a congruent number.

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, 1655301 + ... + 1706810.

It is an arithmetic number, because the mean of its divisors is an integer number (4629628224).

Almost surely, 2^86591168805 is an apocalyptic number.

86591168805 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86591168805 is a deficient number, since it is larger than the sum of its proper divisors (61556934363).

86591168805 is a wasteful number, since it uses less digits than its factorization.

86591168805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362237.

The product of its (nonzero) digits is 4147200, while the sum is 57.

The spelling of 86591168805 in words is "eighty-six billion, five hundred ninety-one million, one hundred sixty-eight thousand, eight hundred five".