20444344305444 has 72 divisors (see below), whose sum is σ = 52780575818880. Its totient is φ = 6669499403712.

The previous prime is 20444344305419. The next prime is 20444344305499. The reversal of 20444344305444 is 44450344344402.

20444344305444 is a `hidden beast` number, since 2 + 0 + 4 + 44 + 34 + 4 + 30 + 544 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20444344305444.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 41059327 + ... + 41554265.

It is an arithmetic number, because the mean of its divisors is an integer number (733063553040).

Almost surely, 2^{20444344305444} is an apocalyptic number.

It is an amenable number.

20444344305444 is an abundant number, since it is smaller than the sum of its proper divisors (32336231513436).

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

20444344305444 is a wasteful number, since it uses less digits than its factorization.

20444344305444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519409 (or 519404 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 45.

Adding to 20444344305444 its reverse (44450344344402), we get a palindrome (64894688649846).

The spelling of 20444344305444 in words is "twenty trillion, four hundred forty-four billion, three hundred forty-four million, three hundred five thousand, four hundred forty-four".