2165980583 has 4 divisors (see below), whose sum is σ = 2332594488. Its totient is φ = 1999366680.

The previous prime is 2165980577. The next prime is 2165980603. The reversal of 2165980583 is 3850895612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2165980583 - 2¹² = 2165976487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165980543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83306933 + ... + 83306958.

It is an arithmetic number, because the mean of its divisors is an integer number (583148622).

Almost surely, 2^2165980583 is an apocalyptic number.

2165980583 is a deficient number, since it is larger than the sum of its proper divisors (166613905).

2165980583 is a wasteful number, since it uses less digits than its factorization.

2165980583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166613904.

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 2165980583 is about 46540.0965082798. The cubic root of 2165980583 is about 1293.8527493896.

The spelling of 2165980583 in words is "two billion, one hundred sixty-five million, nine hundred eighty thousand, five hundred eighty-three".