183666216018 has 16 divisors (see below), whose sum is σ = 370013692320. Its totient is φ = 60775195296.

The previous prime is 183666216011. The next prime is 183666216043. The reversal of 183666216018 is 810612666381.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (183666216011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111718288 + ... + 111719931.

It is an arithmetic number, because the mean of its divisors is an integer number (23125855770).

Almost surely, 2^183666216018 is an apocalyptic number.

183666216018 is an abundant number, since it is smaller than the sum of its proper divisors (186347476302).

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

183666216018 is a wasteful number, since it uses less digits than its factorization.

183666216018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223438361.

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 183666216018 in words is "one hundred eighty-three billion, six hundred sixty-six million, two hundred sixteen thousand, eighteen".