216214663 has 8 divisors (see below), whose sum is σ = 248088960. Its totient is φ = 184587000.

The previous prime is 216214657. The next prime is 216214679. The reversal of 216214663 is 366412612.

216214663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 216214663 - 2¹⁷ = 216083591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216214463) 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, 59773 + ... + 63286.

It is an arithmetic number, because the mean of its divisors is an integer number (31011120).

Almost surely, 2^216214663 is an apocalyptic number.

216214663 is a deficient number, since it is larger than the sum of its proper divisors (31874297).

216214663 is a wasteful number, since it uses less digits than its factorization.

216214663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123317.

The product of its digits is 10368, while the sum is 31.

The square root of 216214663 is about 14704.2396267199. The cubic root of 216214663 is about 600.1986962295.

The spelling of 216214663 in words is "two hundred sixteen million, two hundred fourteen thousand, six hundred sixty-three".