218164105326 has 8 divisors (see below), whose sum is σ = 436328210664. Its totient is φ = 72721368440.

The previous prime is 218164105297. The next prime is 218164105333. The reversal of 218164105326 is 623501461812.

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

218164105326 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 18180342105 + ... + 18180342116.

It is an arithmetic number, because the mean of its divisors is an integer number (54541026333).

Almost surely, 2^218164105326 is an apocalyptic number.

218164105326 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

218164105326 is a wasteful number, since it uses less digits than its factorization.

218164105326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36360684226.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 218164105326 in words is "two hundred eighteen billion, one hundred sixty-four million, one hundred five thousand, three hundred twenty-six".