20043544505053 has 24 divisors (see below), whose sum is σ = 21696210819360. Its totient is φ = 18506407046400.

The previous prime is 20043544505021. The next prime is 20043544505069. The reversal of 20043544505053 is 35050544534002.

It is not a de Polignac number, because 20043544505053 - 2⁵ = 20043544505021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20043544504997 and 20043544505015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043544505003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138684478 + ... + 138828928.

It is an arithmetic number, because the mean of its divisors is an integer number (904008784140).

Almost surely, 2^{20043544505053} is an apocalyptic number.

It is an amenable number.

20043544505053 is a deficient number, since it is larger than the sum of its proper divisors (1652666314307).

20043544505053 is a wasteful number, since it uses less digits than its factorization.

20043544505053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153597 (or 153580 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 40.

The spelling of 20043544505053 in words is "twenty trillion, forty-three billion, five hundred forty-four million, five hundred five thousand, fifty-three".