218116882 has 4 divisors (see below), whose sum is σ = 327175326. Its totient is φ = 109058440.

The previous prime is 218116841. The next prime is 218116883. The reversal of 218116882 is 288611812.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 214944921 + 3171961 = 14661^2 + 1781^2 .

It is not an unprimeable number, because it can be changed into a prime (218116883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54529219 + ... + 54529222.

Almost surely, 2^218116882 is an apocalyptic number.

218116882 is a deficient number, since it is larger than the sum of its proper divisors (109058444).

218116882 is a wasteful number, since it uses less digits than its factorization.

218116882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109058443.

The product of its digits is 12288, while the sum is 37.

The square root of 218116882 is about 14768.7806537981. The cubic root of 218116882 is about 601.9537074001.

The spelling of 218116882 in words is "two hundred eighteen million, one hundred sixteen thousand, eight hundred eighty-two".