1818382000220 has 48 divisors (see below), whose sum is σ = 3823872312960. Its totient is φ = 726349607424.

The previous prime is 1818382000163. The next prime is 1818382000243. The reversal of 1818382000220 is 220002838181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49763597 + ... + 49800123.

It is an arithmetic number, because the mean of its divisors is an integer number (79664006520).

Almost surely, 2^{1818382000220} is an apocalyptic number.

1818382000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1818382000220 is an abundant number, since it is smaller than the sum of its proper divisors (2005490312740).

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

1818382000220 is a wasteful number, since it uses less digits than its factorization.

1818382000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39902 (or 39900 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The spelling of 1818382000220 in words is "one trillion, eight hundred eighteen billion, three hundred eighty-two million, two hundred twenty", and thus it is an aban number.