2165319824 has 20 divisors (see below), whose sum is σ = 4266415920. Its totient is φ = 1064309280.

The previous prime is 2165319817. The next prime is 2165319841. The reversal of 2165319824 is 4289135612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145942 + ... + 1147829.

It is an arithmetic number, because the mean of its divisors is an integer number (213320796).

Almost surely, 2^2165319824 is an apocalyptic number.

It is an amenable number.

2165319824 is a deficient number, since it is larger than the sum of its proper divisors (2101096096).

2165319824 is a wasteful number, since it uses less digits than its factorization.

2165319824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293838 (or 2293832 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 2165319824 is about 46532.9971525583. The cubic root of 2165319824 is about 1293.7211674469.

The spelling of 2165319824 in words is "two billion, one hundred sixty-five million, three hundred nineteen thousand, eight hundred twenty-four".