20043144405 has 24 divisors (see below), whose sum is σ = 35078754048. Its totient is φ = 10585891296.

The previous prime is 20043144383. The next prime is 20043144409. The reversal of 20043144405 is 50444134002.

It is a happy number.

20043144405 is a `hidden beast` number, since 200 + 4 + 3 + 14 + 440 + 5 = 666.

It is not a de Polignac number, because 20043144405 - 2⁹ = 20043143893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043144409) by changing a digit.

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, 2157517 + ... + 2166786.

It is an arithmetic number, because the mean of its divisors is an integer number (1461614752).

Almost surely, 2^20043144405 is an apocalyptic number.

It is an amenable number.

20043144405 is a deficient number, since it is larger than the sum of its proper divisors (15035609643).

20043144405 is a wasteful number, since it uses less digits than its factorization.

20043144405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324417 (or 4324414 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 20043144405 its reverse (50444134002), we get a palindrome (70487278407).

The spelling of 20043144405 in words is "twenty billion, forty-three million, one hundred forty-four thousand, four hundred five".