20110444189 has 16 divisors (see below), whose sum is σ = 23099328000. Its totient is φ = 17315503920.

The previous prime is 20110444187. The next prime is 20110444213. The reversal of 20110444189 is 98144401102.

It is not a de Polignac number, because 20110444189 - 2¹ = 20110444187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110444187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984522 + ... + 1004740.

It is an arithmetic number, because the mean of its divisors is an integer number (1443708000).

Almost surely, 2^20110444189 is an apocalyptic number.

It is an amenable number.

20110444189 is a deficient number, since it is larger than the sum of its proper divisors (2988883811).

20110444189 is a wasteful number, since it uses less digits than its factorization.

20110444189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25008.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 20110444189 in words is "twenty billion, one hundred ten million, four hundred forty-four thousand, one hundred eighty-nine".