216218014 has 8 divisors (see below), whose sum is σ = 324391320. Its totient is φ = 108087576.

The previous prime is 216218011. The next prime is 216218017. The reversal of 216218014 is 410812612.

It is an interprime number because it is at equal distance from previous prime (216218011) and next prime (216218017).

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

It is a self number, because there is not a number n which added to its sum of digits gives 216218014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216218011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9592 + ... + 22900.

It is an arithmetic number, because the mean of its divisors is an integer number (40548915).

Almost surely, 2^216218014 is an apocalyptic number.

216218014 is a deficient number, since it is larger than the sum of its proper divisors (108173306).

216218014 is a wasteful number, since it uses less digits than its factorization.

216218014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21434.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 216218014 is about 14704.3535730069. The cubic root of 216218014 is about 600.2017969372.

The spelling of 216218014 in words is "two hundred sixteen million, two hundred eighteen thousand, fourteen".