164847985165 has 16 divisors (see below), whose sum is σ = 203660755200. Its totient is φ = 128015268480.

The previous prime is 164847985157. The next prime is 164847985177. The reversal of 164847985165 is 561589748461.

It is not a de Polignac number, because 164847985165 - 2³ = 164847985157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164847985097 and 164847985106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1979649 + ... + 2061238.

It is an arithmetic number, because the mean of its divisors is an integer number (12728797200).

Almost surely, 2^164847985165 is an apocalyptic number.

It is an amenable number.

164847985165 is a deficient number, since it is larger than the sum of its proper divisors (38812770035).

164847985165 is a wasteful number, since it uses less digits than its factorization.

164847985165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041132.

The product of its digits is 58060800, while the sum is 64.

The spelling of 164847985165 in words is "one hundred sixty-four billion, eight hundred forty-seven million, nine hundred eighty-five thousand, one hundred sixty-five".