216316163 has 4 divisors (see below), whose sum is σ = 247218480. Its totient is φ = 185413848.

The previous prime is 216316157. The next prime is 216316181. The reversal of 216316163 is 361613612.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216316163 - 2¹⁴ = 216299779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216316103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15451148 + ... + 15451161.

It is an arithmetic number, because the mean of its divisors is an integer number (61804620).

Almost surely, 2^216316163 is an apocalyptic number.

216316163 is a deficient number, since it is larger than the sum of its proper divisors (30902317).

216316163 is an equidigital number, since it uses as much as digits as its factorization.

216316163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30902316.

The product of its digits is 3888, while the sum is 29.

The square root of 216316163 is about 14707.6906072979. The cubic root of 216316163 is about 600.2926008033.

Adding to 216316163 its reverse (361613612), we get a palindrome (577929775).

The spelling of 216316163 in words is "two hundred sixteen million, three hundred sixteen thousand, one hundred sixty-three".