18018802200 has 384 divisors, whose sum is σ = 66158622720. Its totient is φ = 3971635200.

The previous prime is 18018802183. The next prime is 18018802213. The reversal of 18018802200 is 220881081.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13577937 + ... + 13579263.

It is an arithmetic number, because the mean of its divisors is an integer number (172288080).

Almost surely, 2^18018802200 is an apocalyptic number.

18018802200 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 18018802200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33079311360).

18018802200 is an abundant number, since it is smaller than the sum of its proper divisors (48139820520).

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

18018802200 is a wasteful number, since it uses less digits than its factorization.

18018802200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The spelling of 18018802200 in words is "eighteen billion, eighteen million, eight hundred two thousand, two hundred".