2205818981198 has 48 divisors (see below), whose sum is σ = 3865207610880. Its totient is φ = 941361076656.

The previous prime is 2205818981147. The next prime is 2205818981209. The reversal of 2205818981198 is 8911898185022.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2205818981198.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 22411811 + ... + 22510017.

It is an arithmetic number, because the mean of its divisors is an integer number (80525158560).

Almost surely, 2^{2205818981198} is an apocalyptic number.

2205818981198 is a deficient number, since it is larger than the sum of its proper divisors (1659388629682).

2205818981198 is a wasteful number, since it uses less digits than its factorization.

2205818981198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99189 (or 99182 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 62.

The spelling of 2205818981198 in words is "two trillion, two hundred five billion, eight hundred eighteen million, nine hundred eighty-one thousand, one hundred ninety-eight".