20144404424205 has 48 divisors (see below), whose sum is σ = 36145428074496. Its totient is φ = 10367658132480.

The previous prime is 20144404424171. The next prime is 20144404424233. The reversal of 20144404424205 is 50242440444102.

20144404424205 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 4 + 4 + 0 + 442 + 4 + 205 = 666.

It is not a de Polignac number, because 20144404424205 - 2⁶ = 20144404424141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20144404424205.

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 47 ways as a sum of consecutive naturals, for example, 19961437 + ... + 20946306.

It is an arithmetic number, because the mean of its divisors is an integer number (753029751552).

Almost surely, 2^{20144404424205} is an apocalyptic number.

It is an amenable number.

20144404424205 is a deficient number, since it is larger than the sum of its proper divisors (16001023650291).

20144404424205 is a wasteful number, since it uses less digits than its factorization.

20144404424205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40908138 (or 40908135 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 36.

Adding to 20144404424205 its reverse (50242440444102), we get a palindrome (70386844868307).

The spelling of 20144404424205 in words is "twenty trillion, one hundred forty-four billion, four hundred four million, four hundred twenty-four thousand, two hundred five".