20465352303305 has 32 divisors (see below), whose sum is σ = 30237638667264. Its totient is φ = 12948798652416.

The previous prime is 20465352303299. The next prime is 20465352303317. The reversal of 20465352303305 is 50330325356402.

It is a cyclic number.

It is not a de Polignac number, because 20465352303305 - 2²⁰ = 20465351254729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7686584 + ... + 10000713.

It is an arithmetic number, because the mean of its divisors is an integer number (944926208352).

Almost surely, 2^{20465352303305} is an apocalyptic number.

It is an amenable number.

20465352303305 is a deficient number, since it is larger than the sum of its proper divisors (9772286363959).

20465352303305 is a wasteful number, since it uses less digits than its factorization.

20465352303305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17689865.

The product of its (nonzero) digits is 972000, while the sum is 41.

Adding to 20465352303305 its reverse (50330325356402), we get a palindrome (70795677659707).

The spelling of 20465352303305 in words is "twenty trillion, four hundred sixty-five billion, three hundred fifty-two million, three hundred three thousand, three hundred five".