20445341109 has 16 divisors (see below), whose sum is σ = 27838166400. Its totient is φ = 13342545216.

The previous prime is 20445341099. The next prime is 20445341117. The reversal of 20445341109 is 90114354402.

It is not a de Polignac number, because 20445341109 - 2¹³ = 20445332917 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20445341109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20445341129) 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, 76654 + ... + 216255.

It is an arithmetic number, because the mean of its divisors is an integer number (1739885400).

Almost surely, 2^20445341109 is an apocalyptic number.

It is an amenable number.

20445341109 is a deficient number, since it is larger than the sum of its proper divisors (7392825291).

20445341109 is a wasteful number, since it uses less digits than its factorization.

20445341109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293404.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 20445341109 in words is "twenty billion, four hundred forty-five million, three hundred forty-one thousand, one hundred nine".