20044420011 has 48 divisors (see below), whose sum is σ = 36122411520. Its totient is φ = 10405445760.

The previous prime is 20044420007. The next prime is 20044420021. The reversal of 20044420011 is 11002444002.

20044420011 is a `hidden beast` number, since 20 + 0 + 444 + 200 + 1 + 1 = 666.

It is not a de Polignac number, because 20044420011 - 2² = 20044420007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20044420021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1071111 + ... + 1089663.

It is an arithmetic number, because the mean of its divisors is an integer number (752550240).

Almost surely, 2^20044420011 is an apocalyptic number.

20044420011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20044420011 is a deficient number, since it is larger than the sum of its proper divisors (16077991509).

20044420011 is a wasteful number, since it uses less digits than its factorization.

20044420011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20136 (or 20133 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20044420011 its reverse (11002444002), we get a palindrome (31046864013).

The spelling of 20044420011 in words is "twenty billion, forty-four million, four hundred twenty thousand, eleven".