216383612 has 18 divisors (see below), whose sum is σ = 382529784. Its totient is φ = 107100400.

The previous prime is 216383603. The next prime is 216383617.

216383612 is nontrivially palindromic in base 10.

216383612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216383617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38153 + ... + 43455.

Almost surely, 2^216383612 is an apocalyptic number.

It is an amenable number.

216383612 is a deficient number, since it is larger than the sum of its proper divisors (166146172).

216383612 is a wasteful number, since it uses less digits than its factorization.

216383612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509 (or 5406 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 216383612 is about 14709.9834126351. The cubic root of 216383612 is about 600.3549862295.

The spelling of 216383612 in words is "two hundred sixteen million, three hundred eighty-three thousand, six hundred twelve".