2165433500 has 24 divisors (see below), whose sum is σ = 4729307856. Its totient is φ = 866173200.

The previous prime is 2165433499. The next prime is 2165433503. The reversal of 2165433500 is 53345612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165433503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164934 + ... + 2165933.

It is an arithmetic number, because the mean of its divisors is an integer number (197054494).

Almost surely, 2^2165433500 is an apocalyptic number.

2165433500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2165433500 is an abundant number, since it is smaller than the sum of its proper divisors (2563874356).

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

2165433500 is a wasteful number, since it uses less digits than its factorization.

2165433500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330886 (or 4330874 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 2165433500 is about 46534.2185923434. The cubic root of 2165433500 is about 1293.7438065158.

The spelling of 2165433500 in words is "two billion, one hundred sixty-five million, four hundred thirty-three thousand, five hundred".