218106116 has 6 divisors (see below), whose sum is σ = 381685710. Its totient is φ = 109053056.

The previous prime is 218106089. The next prime is 218106131. The reversal of 218106116 is 611601812.

218106116 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 166926400 + 51179716 = 12920^2 + 7154^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27263261 + ... + 27263268.

It is an arithmetic number, because the mean of its divisors is an integer number (63614285).

Almost surely, 2^218106116 is an apocalyptic number.

It is an amenable number.

218106116 is a deficient number, since it is larger than the sum of its proper divisors (163579594).

218106116 is a wasteful number, since it uses less digits than its factorization.

218106116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54526533 (or 54526531 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 218106116 is about 14768.4161642337. The cubic root of 218106116 is about 601.9438033214.

Adding to 218106116 its reverse (611601812), we get a palindrome (829707928).

The spelling of 218106116 in words is "two hundred eighteen million, one hundred six thousand, one hundred sixteen".