18200180200 has 48 divisors (see below), whose sum is σ = 42327290880. Its totient is φ = 7278029760.

The previous prime is 18200180177. The next prime is 18200180203. The reversal of 18200180200 is 208100281.

It is not an unprimeable number, because it can be changed into a prime (18200180203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 845977 + ... + 867223.

It is an arithmetic number, because the mean of its divisors is an integer number (881818560).

Almost surely, 2^18200180200 is an apocalyptic number.

18200180200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18200180200 is an abundant number, since it is smaller than the sum of its proper divisors (24127110680).

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

18200180200 is a wasteful number, since it uses less digits than its factorization.

18200180200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25546 (or 25537 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 18200180200 its reverse (208100281), we get a palindrome (18408280481).

The spelling of 18200180200 in words is "eighteen billion, two hundred million, one hundred eighty thousand, two hundred".