20833113920 has 112 divisors (see below), whose sum is σ = 52683704640. Its totient is φ = 7824531456.

The previous prime is 20833113853. The next prime is 20833113941. The reversal of 20833113920 is 2931133802.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671879 + ... + 702201.

It is an arithmetic number, because the mean of its divisors is an integer number (470390220).

Almost surely, 2^20833113920 is an apocalyptic number.

20833113920 is a gapful number since it is divisible by the number (20) 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 20833113920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26341852320).

20833113920 is an abundant number, since it is smaller than the sum of its proper divisors (31850590720).

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

20833113920 is a wasteful number, since it uses less digits than its factorization.

20833113920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30472 (or 30462 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 20833113920 in words is "twenty billion, eight hundred thirty-three million, one hundred thirteen thousand, nine hundred twenty".