2113694165 has 16 divisors (see below), whose sum is σ = 2794421376. Its totient is φ = 1522008000.

The previous prime is 2113694161. The next prime is 2113694207. The reversal of 2113694165 is 5614963112.

It is not a de Polignac number, because 2113694165 - 2² = 2113694161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113694161) 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, 184697 + ... + 195806.

It is an arithmetic number, because the mean of its divisors is an integer number (174651336).

Almost surely, 2^2113694165 is an apocalyptic number.

It is an amenable number.

2113694165 is a deficient number, since it is larger than the sum of its proper divisors (680727211).

2113694165 is a wasteful number, since it uses less digits than its factorization.

2113694165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380620.

The product of its digits is 38880, while the sum is 38.

The square root of 2113694165 is about 45974.9297443726. The cubic root of 2113694165 is about 1283.3567016978.

The spelling of 2113694165 in words is "two billion, one hundred thirteen million, six hundred ninety-four thousand, one hundred sixty-five".