20002004056 has 16 divisors (see below), whose sum is σ = 37535370840. Its totient is φ = 9992571840.

The previous prime is 20002004039. The next prime is 20002004093. The reversal of 20002004056 is 65040020002.

It is a super-2 number, since 2×20002004056² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043685 + ... + 1062676.

Almost surely, 2^20002004056 is an apocalyptic number.

It is an amenable number.

20002004056 is a deficient number, since it is larger than the sum of its proper divisors (17533366784).

20002004056 is a wasteful number, since it uses less digits than its factorization.

20002004056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107554 (or 2107550 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 20002004056 its reverse (65040020002), we get a palindrome (85042024058).

The spelling of 20002004056 in words is "twenty billion, two million, four thousand, fifty-six".