2165040303 has 8 divisors (see below), whose sum is σ = 2893920816. Its totient is φ = 1439760000.

The previous prime is 2165040299. The next prime is 2165040349. The reversal of 2165040303 is 3030405612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2165040303 - 2² = 2165040299 is a prime.

It is a super-2 number, since 2×2165040303² = 9374799027228663618, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165040103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898648 + ... + 901053.

It is an arithmetic number, because the mean of its divisors is an integer number (361740102).

Almost surely, 2^2165040303 is an apocalyptic number.

2165040303 is a deficient number, since it is larger than the sum of its proper divisors (728880513).

2165040303 is a wasteful number, since it uses less digits than its factorization.

2165040303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800105.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2165040303 is about 46529.9935847836. The cubic root of 2165040303 is about 1293.6654962566.

Adding to 2165040303 its reverse (3030405612), we get a palindrome (5195445915).

The spelling of 2165040303 in words is "two billion, one hundred sixty-five million, forty thousand, three hundred three".