20983040004 has 24 divisors (see below), whose sum is σ = 48963164320. Its totient is φ = 6993955584.

The previous prime is 20983039999. The next prime is 20983040011. The reversal of 20983040004 is 40004038902.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245652 + ... + 319860.

Almost surely, 2^20983040004 is an apocalyptic number.

It is an amenable number.

20983040004 is an abundant number, since it is smaller than the sum of its proper divisors (27980124316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20983040004 is a wasteful number, since it uses less digits than its factorization.

20983040004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97779 (or 97777 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 20983040004 its reverse (40004038902), we get a palindrome (60987078906).

The spelling of 20983040004 in words is "twenty billion, nine hundred eighty-three million, forty thousand, four".