2165980584 has 32 divisors (see below), whose sum is σ = 5417399520. Its totient is φ = 721667136.

The previous prime is 2165980577. The next prime is 2165980603. The reversal of 2165980584 is 4850895612.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37102 + ... + 75554.

It is an arithmetic number, because the mean of its divisors is an integer number (169293735).

Almost surely, 2^2165980584 is an apocalyptic number.

2165980584 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2165980584 is an abundant number, since it is smaller than the sum of its proper divisors (3251418936).

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

2165980584 is a wasteful number, since it uses less digits than its factorization.

2165980584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40809 (or 40805 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The square root of 2165980584 is about 46540.0965190232. The cubic root of 2165980584 is about 1293.8527495887.

The spelling of 2165980584 in words is "two billion, one hundred sixty-five million, nine hundred eighty thousand, five hundred eighty-four".