20833305888 has 96 divisors (see below), whose sum is σ = 55623456000. Its totient is φ = 6826026240.

The previous prime is 20833305881. The next prime is 20833305901. The reversal of 20833305888 is 88850333802.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (20833305881) by changing a digit.

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, 3206323 + ... + 3212813.

It is an arithmetic number, because the mean of its divisors is an integer number (579411000).

Almost surely, 2^20833305888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20833305888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27811728000).

20833305888 is an abundant number, since it is smaller than the sum of its proper divisors (34790150112).

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

20833305888 is a wasteful number, since it uses less digits than its factorization.

20833305888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7070 (or 7062 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 20833305888 in words is "twenty billion, eight hundred thirty-three million, three hundred five thousand, eight hundred eighty-eight".