20444340142241 has 16 divisors (see below), whose sum is σ = 20808689633280. Its totient is φ = 20080592210640.

The previous prime is 20444340142217. The next prime is 20444340142267. The reversal of 20444340142241 is 14224104344402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20444340142241 is a prime.

It is a super-2 number, since 2×20444340142241² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20444340142141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368027030 + ... + 368082576.

It is an arithmetic number, because the mean of its divisors is an integer number (1300543102080).

Almost surely, 2^{20444340142241} is an apocalyptic number.

It is an amenable number.

20444340142241 is a deficient number, since it is larger than the sum of its proper divisors (364349491039).

20444340142241 is a wasteful number, since it uses less digits than its factorization.

20444340142241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60844.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 20444340142241 its reverse (14224104344402), we get a palindrome (34668444486643).

The spelling of 20444340142241 in words is "twenty trillion, four hundred forty-four billion, three hundred forty million, one hundred forty-two thousand, two hundred forty-one".