218330963208 has 108 divisors (see below), whose sum is σ = 603260997885. Its totient is φ = 71335113408.

The previous prime is 218330963189. The next prime is 218330963233. The reversal of 218330963208 is 802369033812.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

218330963208 is a `hidden beast` number, since 2 + 1 + 8 + 3 + 3 + 0 + 9 + 632 + 0 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 207099626724 + 11231336484 = 455082^2 + 105978^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=330402.

It is a super-3 number, since 3×218330963208³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 210135153 + ... + 210136191.

Almost surely, 2^218330963208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218330963208

218330963208 is an abundant number, since it is smaller than the sum of its proper divisors (384930034677).

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

218330963208 is an equidigital number, since it uses as much as digits as its factorization.

218330963208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 218330963208 in words is "two hundred eighteen billion, three hundred thirty million, nine hundred sixty-three thousand, two hundred eight".