20300833188 has 72 divisors (see below), whose sum is σ = 52697998080. Its totient is φ = 6587118720.

The previous prime is 20300833177. The next prime is 20300833291. The reversal of 20300833188 is 88133800302.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 151656 + ... + 252192.

It is an arithmetic number, because the mean of its divisors is an integer number (731916640).

Almost surely, 2^20300833188 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 20300833188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26348999040).

20300833188 is an abundant number, since it is smaller than the sum of its proper divisors (32397164892).

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

20300833188 is a wasteful number, since it uses less digits than its factorization.

20300833188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100697 (or 100692 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

It can be divided in two parts, 203008 and 33188, that added together give a square (236196 = 486²).

The spelling of 20300833188 in words is "twenty billion, three hundred million, eight hundred thirty-three thousand, one hundred eighty-eight".