86168179816 has 64 divisors (see below), whose sum is σ = 168659884800. Its totient is φ = 41240193792.

The previous prime is 86168179807. The next prime is 86168179819. The reversal of 86168179816 is 61897186168.

It is not an unprimeable number, because it can be changed into a prime (86168179819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4360390 + ... + 4380106.

It is an arithmetic number, because the mean of its divisors is an integer number (2635310700).

Almost surely, 2^86168179816 is an apocalyptic number.

It is an amenable number.

86168179816 is a deficient number, since it is larger than the sum of its proper divisors (82491704984).

86168179816 is a wasteful number, since it uses less digits than its factorization.

86168179816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20026 (or 20022 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 61.

The spelling of 86168179816 in words is "eighty-six billion, one hundred sixty-eight million, one hundred seventy-nine thousand, eight hundred sixteen".