2165264375 has 10 divisors (see below), whose sum is σ = 2705715144. Its totient is φ = 1732211000.

The previous prime is 2165264369. The next prime is 2165264417. The reversal of 2165264375 is 5734625612.

It is not a de Polignac number, because 2165264375 - 2⁴ = 2165264359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1731587 + ... + 1732836.

Almost surely, 2^2165264375 is an apocalyptic number.

2165264375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2165264375 is a deficient number, since it is larger than the sum of its proper divisors (540450769).

2165264375 is an frugal number, since it uses more digits than its factorization.

2165264375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464443 (or 3464428 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The square root of 2165264375 is about 46532.4013457290. The cubic root of 2165264375 is about 1293.7101242504.

Adding to 2165264375 its reverse (5734625612), we get a palindrome (7899889987).

The spelling of 2165264375 in words is "two billion, one hundred sixty-five million, two hundred sixty-four thousand, three hundred seventy-five".