86172516164 has 48 divisors (see below), whose sum is σ = 172704086016. Its totient is φ = 36854244000.

The previous prime is 86172516127. The next prime is 86172516203. The reversal of 86172516164 is 46161527168.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50012207 + ... + 50013929.

It is an arithmetic number, because the mean of its divisors is an integer number (3598001792).

Almost surely, 2^86172516164 is an apocalyptic number.

It is an amenable number.

86172516164 is an abundant number, since it is smaller than the sum of its proper divisors (86531569852).

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

86172516164 is a wasteful number, since it uses less digits than its factorization.

86172516164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416 (or 4414 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The spelling of 86172516164 in words is "eighty-six billion, one hundred seventy-two million, five hundred sixteen thousand, one hundred sixty-four".