2165232069 has 48 divisors (see below), whose sum is σ = 4199255424. Its totient is φ = 1038268800.

The previous prime is 2165231989. The next prime is 2165232089. The reversal of 2165232069 is 9602325612.

It is not a de Polignac number, because 2165232069 - 2⁸ = 2165231813 is a prime.

It is a super-2 number, since 2×2165232069² = 9376459825252041522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165232089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111162 + ... + 129179.

It is an arithmetic number, because the mean of its divisors is an integer number (87484488).

Almost surely, 2^2165232069 is an apocalyptic number.

It is an amenable number.

2165232069 is a deficient number, since it is larger than the sum of its proper divisors (2034023355).

2165232069 is a wasteful number, since it uses less digits than its factorization.

2165232069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240378 (or 240375 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2165232069 is about 46532.0542099744. The cubic root of 2165232069 is about 1293.7036901158.

The spelling of 2165232069 in words is "two billion, one hundred sixty-five million, two hundred thirty-two thousand, sixty-nine".