218047116 has 48 divisors (see below), whose sum is σ = 612066560. Its totient is φ = 59019840.

The previous prime is 218047111. The next prime is 218047127. The reversal of 218047116 is 611740812.

218047116 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (218047111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66715 + ... + 69906.

Almost surely, 2^218047116 is an apocalyptic number.

It is an amenable number.

218047116 is an abundant number, since it is smaller than the sum of its proper divisors (394019444).

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

218047116 is a wasteful number, since it uses less digits than its factorization.

218047116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136654 (or 136652 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 218047116 is about 14766.4185231220. The cubic root of 218047116 is about 601.8895210484.

Adding to 218047116 its reverse (611740812), we get a palindrome (829787928).

It can be divided in two parts, 21804 and 7116, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 218047116 in words is "two hundred eighteen million, forty-seven thousand, one hundred sixteen".