216332644207 has 2 divisors, whose sum is σ = 216332644208. Its totient is φ = 216332644206.

The previous prime is 216332644193. The next prime is 216332644219. The reversal of 216332644207 is 702446233612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216332644207 - 2¹¹ = 216332642159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216332644207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216332644267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108166322103 + 108166322104.

It is an arithmetic number, because the mean of its divisors is an integer number (108166322104).

Almost surely, 2^216332644207 is an apocalyptic number.

216332644207 is a deficient number, since it is larger than the sum of its proper divisors (1).

216332644207 is an equidigital number, since it uses as much as digits as its factorization.

216332644207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 40.

Adding to 216332644207 its reverse (702446233612), we get a palindrome (918778877819).

The spelling of 216332644207 in words is "two hundred sixteen billion, three hundred thirty-two million, six hundred forty-four thousand, two hundred seven".