20450350552265 has 8 divisors (see below), whose sum is σ = 24593423733888. Its totient is φ = 16324945061040.

The previous prime is 20450350552223. The next prime is 20450350552271. The reversal of 20450350552265 is 56225505305402.

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

It is a de Polignac number, because none of the positive numbers 2^k-20450350552265 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 4416920051 + ... + 4416924680.

It is an arithmetic number, because the mean of its divisors is an integer number (3074177966736).

Almost surely, 2^{20450350552265} is an apocalyptic number.

It is an amenable number.

20450350552265 is a deficient number, since it is larger than the sum of its proper divisors (4143073181623).

20450350552265 is an equidigital number, since it uses as much as digits as its factorization.

20450350552265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8833845199.

The product of its (nonzero) digits is 1800000, while the sum is 44.

Adding to 20450350552265 its reverse (56225505305402), we get a palindrome (76675855857667).

The spelling of 20450350552265 in words is "twenty trillion, four hundred fifty billion, three hundred fifty million, five hundred fifty-two thousand, two hundred sixty-five".