20450200560256 has 32 divisors (see below), whose sum is σ = 42145483382100. Its totient is φ = 9872510613504.

The previous prime is 20450200560247. The next prime is 20450200560259. The reversal of 20450200560256 is 65206500205402.

It can be written as a sum of positive squares in 2 ways, for example, as 19693926830656 + 756273729600 = 4437784^2 + 869640^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (20450200560259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2754603045 + ... + 2754610468.

Almost surely, 2^{20450200560256} is an apocalyptic number.

It is an amenable number.

20450200560256 is an abundant number, since it is smaller than the sum of its proper divisors (21695282821844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20450200560256 is an equidigital number, since it uses as much as digits as its factorization.

20450200560256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5509213556 (or 5509213544 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 20450200560256 its reverse (65206500205402), we get a palindrome (85656700765658).

The spelling of 20450200560256 in words is "twenty trillion, four hundred fifty billion, two hundred million, five hundred sixty thousand, two hundred fifty-six".