2164465659 has 4 divisors (see below), whose sum is σ = 2885954216. Its totient is φ = 1442977104.

The previous prime is 2164465649. The next prime is 2164465679. The reversal of 2164465659 is 9565644612.

2164465659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2164465659 - 2⁴ = 2164465643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164465609) 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, 360744274 + ... + 360744279.

It is an arithmetic number, because the mean of its divisors is an integer number (721488554).

Almost surely, 2^2164465659 is an apocalyptic number.

2164465659 is a deficient number, since it is larger than the sum of its proper divisors (721488557).

2164465659 is an equidigital number, since it uses as much as digits as its factorization.

2164465659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721488556.

The product of its digits is 1555200, while the sum is 48.

The square root of 2164465659 is about 46523.8181902561. The cubic root of 2164465659 is about 1293.5510314289.

The spelling of 2164465659 in words is "two billion, one hundred sixty-four million, four hundred sixty-five thousand, six hundred fifty-nine".