18382020200 has 96 divisors (see below), whose sum is σ = 43711488000. Its totient is φ = 7187232000.

The previous prime is 18382020191. The next prime is 18382020221. The reversal of 18382020200 is 202028381.

It is a self number, because there is not a number n which added to its sum of digits gives 18382020200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1590041 + ... + 1601559.

It is an arithmetic number, because the mean of its divisors is an integer number (455328000).

Almost surely, 2^18382020200 is an apocalyptic number.

18382020200 is a gapful number since it is divisible by the number (10) 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 18382020200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21855744000).

18382020200 is an abundant number, since it is smaller than the sum of its proper divisors (25329467800).

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

18382020200 is a wasteful number, since it uses less digits than its factorization.

18382020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11715 (or 11706 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 18382020200 its reverse (202028381), we get a palindrome (18584048581).

The spelling of 18382020200 in words is "eighteen billion, three hundred eighty-two million, twenty thousand, two hundred".