216281163 has 8 divisors (see below), whose sum is σ = 329571328. Its totient is φ = 123589224.

The previous prime is 216281147. The next prime is 216281189. The reversal of 216281163 is 361182612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216281163 - 2⁴ = 216281147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216281163.

It is not an unprimeable number, because it can be changed into a prime (216281113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5149531 + ... + 5149572.

It is an arithmetic number, because the mean of its divisors is an integer number (41196416).

Almost surely, 2^216281163 is an apocalyptic number.

216281163 is a deficient number, since it is larger than the sum of its proper divisors (113290165).

216281163 is a wasteful number, since it uses less digits than its factorization.

216281163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10299113.

The product of its digits is 3456, while the sum is 30.

The square root of 216281163 is about 14706.5007054704. The cubic root of 216281163 is about 600.2602232346.

It can be divided in two parts, 21628 and 1163, that added together give a triangular number (22791 = T₂₁₃).

The spelling of 216281163 in words is "two hundred sixteen million, two hundred eighty-one thousand, one hundred sixty-three".