20042444105 has 8 divisors (see below), whose sum is σ = 24826769664. Its totient is φ = 15516730800.

The previous prime is 20042444087. The next prime is 20042444111. The reversal of 20042444105 is 50144424002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20042444105 - 2¹⁰ = 20042443081 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 64652891 + ... + 64653200.

It is an arithmetic number, because the mean of its divisors is an integer number (3103346208).

Almost surely, 2^20042444105 is an apocalyptic number.

It is an amenable number.

20042444105 is a deficient number, since it is larger than the sum of its proper divisors (4784325559).

20042444105 is a wasteful number, since it uses less digits than its factorization.

20042444105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129306127.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 20042444105 its reverse (50144424002), we get a palindrome (70186868107).

The spelling of 20042444105 in words is "twenty billion, forty-two million, four hundred forty-four thousand, one hundred five".