218322680052 has 24 divisors (see below), whose sum is σ = 509674480000. Its totient is φ = 72737813376.

The previous prime is 218322679969. The next prime is 218322680077. The reversal of 218322680052 is 250086223812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4526677 + ... + 4574652.

Almost surely, 2^218322680052 is an apocalyptic number.

It is an amenable number.

218322680052 is an abundant number, since it is smaller than the sum of its proper divisors (291351799948).

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

218322680052 is a wasteful number, since it uses less digits than its factorization.

218322680052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9103335 (or 9103333 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 218322680052 in words is "two hundred eighteen billion, three hundred twenty-two million, six hundred eighty thousand, fifty-two".