20244405205 has 24 divisors (see below), whose sum is σ = 25822776960. Its totient is φ = 15233153280.

The previous prime is 20244405193. The next prime is 20244405227. The reversal of 20244405205 is 50250444202.

It is not a de Polignac number, because 20244405205 - 2¹³ = 20244397013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2942920 + ... + 2949790.

It is an arithmetic number, because the mean of its divisors is an integer number (1075949040).

Almost surely, 2^20244405205 is an apocalyptic number.

It is an amenable number.

20244405205 is a deficient number, since it is larger than the sum of its proper divisors (5578371755).

20244405205 is a wasteful number, since it uses less digits than its factorization.

20244405205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8949 (or 8932 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 20244405205 its reverse (50250444202), we get a palindrome (70494849407).

The spelling of 20244405205 in words is "twenty billion, two hundred forty-four million, four hundred five thousand, two hundred five".