216163117 has 2 divisors, whose sum is σ = 216163118. Its totient is φ = 216163116.

The previous prime is 216163067. The next prime is 216163141. The reversal of 216163117 is 711361612.

216163117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195832036 + 20331081 = 13994^2 + 4509^2 .

It is a cyclic number.

It is not a de Polignac number, because 216163117 - 2¹⁵ = 216130349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216167117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108081558 + 108081559.

It is an arithmetic number, because the mean of its divisors is an integer number (108081559).

Almost surely, 2^216163117 is an apocalyptic number.

It is an amenable number.

216163117 is a deficient number, since it is larger than the sum of its proper divisors (1).

216163117 is an equidigital number, since it uses as much as digits as its factorization.

216163117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 28.

The square root of 216163117 is about 14702.4867624494. The cubic root of 216163117 is about 600.1509962563.

The spelling of 216163117 in words is "two hundred sixteen million, one hundred sixty-three thousand, one hundred seventeen".