20043525144 has 128 divisors (see below), whose sum is σ = 53432006400. Its totient is φ = 6247641600.

The previous prime is 20043525143. The next prime is 20043525157. The reversal of 20043525144 is 44152534002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043525143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25929142 + ... + 25929914.

It is an arithmetic number, because the mean of its divisors is an integer number (417437550).

Almost surely, 2^20043525144 is an apocalyptic number.

20043525144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20043525144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26716003200).

20043525144 is an abundant number, since it is smaller than the sum of its proper divisors (33388481256).

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

20043525144 is a wasteful number, since it uses less digits than its factorization.

20043525144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 20043525144 in words is "twenty billion, forty-three million, five hundred twenty-five thousand, one hundred forty-four".