2040660165 has 32 divisors (see below), whose sum is σ = 3412684800. Its totient is φ = 1039300416.

The previous prime is 2040660143. The next prime is 2040660221. The reversal of 2040660165 is 5610660402.

It is not a de Polignac number, because 2040660165 - 2⁵ = 2040660133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217236 + ... + 226434.

It is an arithmetic number, because the mean of its divisors is an integer number (106646400).

Almost surely, 2^2040660165 is an apocalyptic number.

It is an amenable number.

2040660165 is a deficient number, since it is larger than the sum of its proper divisors (1372024635).

2040660165 is a wasteful number, since it uses less digits than its factorization.

2040660165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2040660165 is about 45173.6667207788. Note that the first 3 decimals coincide. The cubic root of 2040660165 is about 1268.4019342073.

The spelling of 2040660165 in words is "two billion, forty million, six hundred sixty thousand, one hundred sixty-five".