218624116 has 6 divisors (see below), whose sum is σ = 382592210. Its totient is φ = 109312056.

The previous prime is 218624113. The next prime is 218624117. The reversal of 218624116 is 611426812.

218624116 is digitally balanced in base 2, 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., 205807716 + 12816400 = 14346^2 + 3580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218624111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27328011 + ... + 27328018.

Almost surely, 2^218624116 is an apocalyptic number.

It is an amenable number.

218624116 is a deficient number, since it is larger than the sum of its proper divisors (163968094).

218624116 is a wasteful number, since it uses less digits than its factorization.

218624116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54656033 (or 54656031 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 218624116 is about 14785.9431893944. The cubic root of 218624116 is about 602.4199635424.

The spelling of 218624116 in words is "two hundred eighteen million, six hundred twenty-four thousand, one hundred sixteen".