218333838552 has 16 divisors (see below), whose sum is σ = 545834596440. Its totient is φ = 72777946176.

The previous prime is 218333838517. The next prime is 218333838623. The reversal of 218333838552 is 255838333812.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 218333838495 and 218333838504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4548621613 + ... + 4548621660.

Almost surely, 2^218333838552 is an apocalyptic number.

It is an amenable number.

218333838552 is an abundant number, since it is smaller than the sum of its proper divisors (327500757888).

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

218333838552 is a wasteful number, since it uses less digits than its factorization.

218333838552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9097243282 (or 9097243278 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 51.

The spelling of 218333838552 in words is "two hundred eighteen billion, three hundred thirty-three million, eight hundred thirty-eight thousand, five hundred fifty-two".