14143402565 has 8 divisors (see below), whose sum is σ = 16973357208. Its totient is φ = 11313872640.

The previous prime is 14143402547. The next prime is 14143402579. The reversal of 14143402565 is 56520434141.

It can be written as a sum of positive squares in 4 ways, for example, as 101626561 + 14041776004 = 10081^2 + 118498^2 .

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

It is not a de Polignac number, because 14143402565 - 2⁸ = 14143402309 is a prime.

It is a super-2 number, since 2×14143402565² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 27632 + ... + 170441.

It is an arithmetic number, because the mean of its divisors is an integer number (2121669651).

Almost surely, 2^14143402565 is an apocalyptic number.

It is an amenable number.

14143402565 is a deficient number, since it is larger than the sum of its proper divisors (2829954643).

14143402565 is a wasteful number, since it uses less digits than its factorization.

14143402565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212359.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 14143402565 in words is "fourteen billion, one hundred forty-three million, four hundred two thousand, five hundred sixty-five".