20440205106 has 16 divisors (see below), whose sum is σ = 40907700000. Its totient is φ = 6808853408.

The previous prime is 20440205083. The next prime is 20440205113. The reversal of 20440205106 is 60150204402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127331 + ... + 1145318.

It is an arithmetic number, because the mean of its divisors is an integer number (2556731250).

Almost surely, 2^20440205106 is an apocalyptic number.

20440205106 is an abundant number, since it is smaller than the sum of its proper divisors (20467494894).

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

20440205106 is a wasteful number, since it uses less digits than its factorization.

20440205106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274153.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20440205106 its reverse (60150204402), we get a palindrome (80590409508).

The spelling of 20440205106 in words is "twenty billion, four hundred forty million, two hundred five thousand, one hundred six".