2165822530 has 16 divisors (see below), whose sum is σ = 3899563200. Its totient is φ = 866088432.

The previous prime is 2165822497. The next prime is 2165822543. The reversal of 2165822530 is 352285612.

2165822530 is nontrivially palindromic in base 4.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10321 + ... + 66619.

It is an arithmetic number, because the mean of its divisors is an integer number (243722700).

Almost surely, 2^2165822530 is an apocalyptic number.

2165822530 is a deficient number, since it is larger than the sum of its proper divisors (1733740670).

2165822530 is a wasteful number, since it uses less digits than its factorization.

2165822530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60153.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 2165822530 is about 46538.3984468740. The cubic root of 2165822530 is about 1293.8212775342.

The spelling of 2165822530 in words is "two billion, one hundred sixty-five million, eight hundred twenty-two thousand, five hundred thirty".