218416068327232 has 56 divisors (see below), whose sum is σ = 449245757615400. Its totient is φ = 105235083749376.

The previous prime is 218416068327209. The next prime is 218416068327307. The reversal of 218416068327232 is 232723860614812.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24479695708416 + 193936372618816 = 4947696^2 + 13926104^2 .

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 7 ways as a sum of consecutive naturals, for example, 114655563 + ... + 116544970.

Almost surely, 2^{218416068327232} is an apocalyptic number.

It is an amenable number.

218416068327232 is an abundant number, since it is smaller than the sum of its proper divisors (230829689288168).

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

218416068327232 is a wasteful number, since it uses less digits than its factorization.

218416068327232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231201083 (or 231201073 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 218416068327232 in words is "two hundred eighteen trillion, four hundred sixteen billion, sixty-eight million, three hundred twenty-seven thousand, two hundred thirty-two".