1818382222168 has 32 divisors (see below), whose sum is σ = 3653858532960. Its totient is φ = 846156706560.

The previous prime is 1818382222141. The next prime is 1818382222169. The reversal of 1818382222168 is 8612222838181.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818382222169) 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 7 ways as a sum of consecutive naturals, for example, 133540653 + ... + 133554268.

It is an arithmetic number, because the mean of its divisors is an integer number (114183079155).

Almost surely, 2^{1818382222168} is an apocalyptic number.

It is an amenable number.

1818382222168 is an abundant number, since it is smaller than the sum of its proper divisors (1835476310792).

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

1818382222168 is a wasteful number, since it uses less digits than its factorization.

1818382222168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267094987 (or 267094983 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 52.

The spelling of 1818382222168 in words is "one trillion, eight hundred eighteen billion, three hundred eighty-two million, two hundred twenty-two thousand, one hundred sixty-eight".