218664063655512 has 64 divisors (see below), whose sum is σ = 589737707808480. Its totient is φ = 67306141673472.

The previous prime is 218664063655483. The next prime is 218664063655561. The reversal of 218664063655512 is 215556360466812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5056028683 + ... + 5056071930.

Almost surely, 2^{218664063655512} is an apocalyptic number.

It is an amenable number.

218664063655512 is an abundant number, since it is smaller than the sum of its proper divisors (371073644152968).

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

218664063655512 is a wasteful number, since it uses less digits than its factorization.

218664063655512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10112100692 (or 10112100688 counting only the distinct ones).

The product of its (nonzero) digits is 62208000, while the sum is 60.

The spelling of 218664063655512 in words is "two hundred eighteen trillion, six hundred sixty-four billion, sixty-three million, six hundred fifty-five thousand, five hundred twelve".