20044432411540 has 24 divisors (see below), whose sum is σ = 42094872433152. Its totient is φ = 8017474989600.

The previous prime is 20044432411513. The next prime is 20044432411543. The reversal of 20044432411540 is 4511423444002.

It is a junction number, because it is equal to n+sod(n) for n = 20044432411496 and 20044432411505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044432411543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18071436 + ... + 19148515.

It is an arithmetic number, because the mean of its divisors is an integer number (1753953018048).

Almost surely, 2^{20044432411540} is an apocalyptic number.

20044432411540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20044432411540 is an abundant number, since it is smaller than the sum of its proper divisors (22050440021612).

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

20044432411540 is a wasteful number, since it uses less digits than its factorization.

20044432411540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37246887 (or 37246885 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 20044432411540 its reverse (4511423444002), we get a palindrome (24555855855542).

The spelling of 20044432411540 in words is "twenty trillion, forty-four billion, four hundred thirty-two million, four hundred eleven thousand, five hundred forty".