86116995640 has 32 divisors (see below), whose sum is σ = 208668106080. Its totient is φ = 31797044352.

The previous prime is 86116995599. The next prime is 86116995661. The reversal of 86116995640 is 4659961168.

It is a super-2 number, since 2×86116995640² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

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, 82804284 + ... + 82805323.

It is an arithmetic number, because the mean of its divisors is an integer number (6520878315).

Almost surely, 2^86116995640 is an apocalyptic number.

It is an amenable number.

86116995640 is an abundant number, since it is smaller than the sum of its proper divisors (122551110440).

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

86116995640 is a wasteful number, since it uses less digits than its factorization.

86116995640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165609631 (or 165609627 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 86116995640 in words is "eighty-six billion, one hundred sixteen million, nine hundred ninety-five thousand, six hundred forty".