2165252202 has 16 divisors (see below), whose sum is σ = 4811671680. Its totient is φ = 721750716.

The previous prime is 2165252183. The next prime is 2165252203. The reversal of 2165252202 is 2022525612.

2165252202 is a `hidden beast` number, since 2 + 1 + 652 + 5 + 2 + 2 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2165252203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20048578 + ... + 20048685.

It is an arithmetic number, because the mean of its divisors is an integer number (300729480).

Almost surely, 2^2165252202 is an apocalyptic number.

2165252202 is an abundant number, since it is smaller than the sum of its proper divisors (2646419478).

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

2165252202 is a wasteful number, since it uses less digits than its factorization.

2165252202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40097274 (or 40097268 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2165252202 is about 46532.2705442148. The cubic root of 2165252202 is about 1293.7076998562.

Adding to 2165252202 its reverse (2022525612), we get a palindrome (4187777814).

The spelling of 2165252202 in words is "two billion, one hundred sixty-five million, two hundred fifty-two thousand, two hundred two".