2164603045165 has 12 divisors (see below), whose sum is σ = 2855129306652. Its totient is φ = 1574256759680.

The previous prime is 2164603045139. The next prime is 2164603045177. The reversal of 2164603045165 is 5615403064612.

It can be written as a sum of positive squares in 2 ways, for example, as 395325305001 + 1769277740164 = 628749^2 + 1330142^2 .

It is not a de Polignac number, because 2164603045165 - 2²⁹ = 2164066174253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1788927532 + ... + 1788928741.

It is an arithmetic number, because the mean of its divisors is an integer number (237927442221).

Almost surely, 2^{2164603045165} is an apocalyptic number.

It is an amenable number.

2164603045165 is a deficient number, since it is larger than the sum of its proper divisors (690526261487).

2164603045165 is a wasteful number, since it uses less digits than its factorization.

2164603045165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577856300 (or 3577856289 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 2164603045165 in words is "two trillion, one hundred sixty-four billion, six hundred three million, forty-five thousand, one hundred sixty-five".