20960904569 has 8 divisors (see below), whose sum is σ = 22876626720. Its totient is φ = 19046880000.

The previous prime is 20960904553. The next prime is 20960904589. The reversal of 20960904569 is 96540906902.

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 20960904569 - 2⁴ = 20960904553 is a prime.

It is a super-2 number, since 2×20960904569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20960904589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398504 + ... + 448025.

It is an arithmetic number, because the mean of its divisors is an integer number (2859578340).

Almost surely, 2^20960904569 is an apocalyptic number.

It is an amenable number.

20960904569 is a deficient number, since it is larger than the sum of its proper divisors (1915722151).

20960904569 is a wasteful number, since it uses less digits than its factorization.

20960904569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848791.

The product of its (nonzero) digits is 1049760, while the sum is 50.

It can be divided in two parts, 20960 and 904569, that added together give a palindrome (925529).

The spelling of 20960904569 in words is "twenty billion, nine hundred sixty million, nine hundred four thousand, five hundred sixty-nine".