216134663 has 2 divisors, whose sum is σ = 216134664. Its totient is φ = 216134662.

The previous prime is 216134629. The next prime is 216134701. The reversal of 216134663 is 366431612.

216134663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216134663 - 2¹⁰ = 216133639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216134363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108067331 + 108067332.

It is an arithmetic number, because the mean of its divisors is an integer number (108067332).

Almost surely, 2^216134663 is an apocalyptic number.

216134663 is a deficient number, since it is larger than the sum of its proper divisors (1).

216134663 is an equidigital number, since it uses as much as digits as its factorization.

216134663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The square root of 216134663 is about 14701.5190711708. The cubic root of 216134663 is about 600.1246620601.

The spelling of 216134663 in words is "two hundred sixteen million, one hundred thirty-four thousand, six hundred sixty-three".