20444532224441 has 4 divisors (see below), whose sum is σ = 22017188549412. Its totient is φ = 18871875899472.

The previous prime is 20444532224437. The next prime is 20444532224471. The reversal of 20444532224441 is 14442223544402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2605735264441 + 17838796960000 = 1614229^2 + 4223600^2 .

It is a cyclic number.

It is not a de Polignac number, because 20444532224441 - 2² = 20444532224437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20444532224471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786328162466 + ... + 786328162491.

It is an arithmetic number, because the mean of its divisors is an integer number (5504297137353).

Almost surely, 2^{20444532224441} is an apocalyptic number.

It is an amenable number.

20444532224441 is a deficient number, since it is larger than the sum of its proper divisors (1572656324971).

20444532224441 is a wasteful number, since it uses less digits than its factorization.

20444532224441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572656324970.

The product of its (nonzero) digits is 983040, while the sum is 41.

Adding to 20444532224441 its reverse (14442223544402), we get a palindrome (34886755768843).

The spelling of 20444532224441 in words is "twenty trillion, four hundred forty-four billion, five hundred thirty-two million, two hundred twenty-four thousand, four hundred forty-one".