20002044405 has 16 divisors (see below), whose sum is σ = 36575167104. Its totient is φ = 9143791680.

The previous prime is 20002044379. The next prime is 20002044443. The reversal of 20002044405 is 50444020002.

It is not a de Polignac number, because 20002044405 - 2¹⁴ = 20002028021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95247726 + ... + 95247935.

It is an arithmetic number, because the mean of its divisors is an integer number (2285947944).

Almost surely, 2^20002044405 is an apocalyptic number.

It is an amenable number.

20002044405 is a deficient number, since it is larger than the sum of its proper divisors (16573122699).

20002044405 is a wasteful number, since it uses less digits than its factorization.

20002044405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190495676.

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 20002044405 its reverse (50444020002), we get a palindrome (70446064407).

The spelling of 20002044405 in words is "twenty billion, two million, forty-four thousand, four hundred five".