216033307 has 12 divisors (see below), whose sum is σ = 251595720. Its totient is φ = 184956576.

The previous prime is 216033299. The next prime is 216033317. The reversal of 216033307 is 703330612.

It is not a de Polignac number, because 216033307 - 2³ = 216033299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216033317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51744 + ... + 55762.

It is an arithmetic number, because the mean of its divisors is an integer number (20966310).

Almost surely, 2^216033307 is an apocalyptic number.

216033307 is a deficient number, since it is larger than the sum of its proper divisors (35562413).

216033307 is a wasteful number, since it uses less digits than its factorization.

216033307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130 (or 5123 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 216033307 is about 14698.0715401715. The cubic root of 216033307 is about 600.0308382298.

Adding to 216033307 its reverse (703330612), we get a palindrome (919363919).

The spelling of 216033307 in words is "two hundred sixteen million, thirty-three thousand, three hundred seven".