18213286166 has 8 divisors (see below), whose sum is σ = 27590423904. Its totient is φ = 9016478200.

The previous prime is 18213286159. The next prime is 18213286219. The reversal of 18213286166 is 66168231281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45082190 + ... + 45082593.

It is an arithmetic number, because the mean of its divisors is an integer number (3448802988).

Almost surely, 2^18213286166 is an apocalyptic number.

18213286166 is a deficient number, since it is larger than the sum of its proper divisors (9377137738).

18213286166 is a wasteful number, since it uses less digits than its factorization.

18213286166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90164886.

The product of its digits is 165888, while the sum is 44.

The spelling of 18213286166 in words is "eighteen billion, two hundred thirteen million, two hundred eighty-six thousand, one hundred sixty-six".