20544224141 has 16 divisors (see below), whose sum is σ = 24864024960. Its totient is φ = 16570967040.

The previous prime is 20544224123. The next prime is 20544224149. The reversal of 20544224141 is 14142244502.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20544224141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20544224149) 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 15 ways as a sum of consecutive naturals, for example, 1494821 + ... + 1508501.

It is an arithmetic number, because the mean of its divisors is an integer number (1554001560).

Almost surely, 2^20544224141 is an apocalyptic number.

It is an amenable number.

20544224141 is a deficient number, since it is larger than the sum of its proper divisors (4319800819).

20544224141 is a wasteful number, since it uses less digits than its factorization.

20544224141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26324.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 20544224141 its reverse (14142244502), we get a palindrome (34686468643).

The spelling of 20544224141 in words is "twenty billion, five hundred forty-four million, two hundred twenty-four thousand, one hundred forty-one".