20200571904 has 88 divisors (see below), whose sum is σ = 53883917920. Its totient is φ = 6728269824.

The previous prime is 20200571873. The next prime is 20200571921. The reversal of 20200571904 is 40917500202.

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, 7595727 + ... + 7598385.

Almost surely, 2^20200571904 is an apocalyptic number.

20200571904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20200571904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26941958960).

20200571904 is an abundant number, since it is smaller than the sum of its proper divisors (33683346016).

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

20200571904 is a wasteful number, since it uses less digits than its factorization.

20200571904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155 (or 5137 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 20200571904 in words is "twenty billion, two hundred million, five hundred seventy-one thousand, nine hundred four".