216243063 has 12 divisors (see below), whose sum is σ = 312786760. Its totient is φ = 143960976.

The previous prime is 216243037. The next prime is 216243089. The reversal of 216243063 is 360342612.

216243063 is a `hidden beast` number, since 2 + 1 + 624 + 30 + 6 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (216243037) and next prime (216243089).

It is not a de Polignac number, because 216243063 - 2⁵ = 216243031 is a prime.

It is a super-2 number, since 2×216243063² = 93522124591243938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216243163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9793 + ... + 22986.

Almost surely, 2^216243063 is an apocalyptic number.

216243063 is a deficient number, since it is larger than the sum of its proper divisors (96543697).

216243063 is a wasteful number, since it uses less digits than its factorization.

216243063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33518 (or 33515 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 216243063 is about 14705.2053028851. The cubic root of 216243063 is about 600.2249739673.

Adding to 216243063 its reverse (360342612), we get a palindrome (576585675).

The spelling of 216243063 in words is "two hundred sixteen million, two hundred forty-three thousand, sixty-three".