10440002165 has 8 divisors (see below), whose sum is σ = 12532677720. Its totient is φ = 8348884992.

The previous prime is 10440002147. The next prime is 10440002171. The reversal of 10440002165 is 56120004401.

It can be written as a sum of positive squares in 4 ways, for example, as 221622769 + 10218379396 = 14887^2 + 101086^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10440002165 - 2⁸ = 10440001909 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10440002165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374804 + ... + 401693.

It is an arithmetic number, because the mean of its divisors is an integer number (1566584715).

Almost surely, 2^10440002165 is an apocalyptic number.

It is an amenable number.

10440002165 is a deficient number, since it is larger than the sum of its proper divisors (2092675555).

10440002165 is an equidigital number, since it uses as much as digits as its factorization.

10440002165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779191.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 10440002165 its reverse (56120004401), we get a palindrome (66560006566).

The spelling of 10440002165 in words is "ten billion, four hundred forty million, two thousand, one hundred sixty-five".