2165045792 has 72 divisors (see below), whose sum is σ = 5339802636. Its totient is φ = 856493568.

The previous prime is 2165045789. The next prime is 2165045803. The reversal of 2165045792 is 2975405612.

It can be written as a sum of positive squares in 2 ways, for example, as 1866585616 + 298460176 = 43204^2 + 17276^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 32723 + ... + 73490.

Almost surely, 2^2165045792 is an apocalyptic number.

It is an amenable number.

2165045792 is an abundant number, since it is smaller than the sum of its proper divisors (3174756844).

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

2165045792 is a wasteful number, since it uses less digits than its factorization.

2165045792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106250 (or 106235 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 2165045792 is about 46530.0525682059. The cubic root of 2165045792 is about 1293.6665895271. Note that the first 3 decimals are identical.

The spelling of 2165045792 in words is "two billion, one hundred sixty-five million, forty-five thousand, seven hundred ninety-two".