218664224798 has 4 divisors (see below), whose sum is σ = 327996337200. Its totient is φ = 109332112398.

The previous prime is 218664224699. The next prime is 218664224879. The reversal of 218664224798 is 897422466812.

218664224798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54666056198 + ... + 54666056201.

It is an arithmetic number, because the mean of its divisors is an integer number (81999084300).

Almost surely, 2^218664224798 is an apocalyptic number.

218664224798 is a deficient number, since it is larger than the sum of its proper divisors (109332112402).

218664224798 is a wasteful number, since it uses less digits than its factorization.

218664224798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109332112401.

The product of its digits is 18579456, while the sum is 59.

The spelling of 218664224798 in words is "two hundred eighteen billion, six hundred sixty-four million, two hundred twenty-four thousand, seven hundred ninety-eight".