216007216 has 10 divisors (see below), whose sum is σ = 418514012. Its totient is φ = 108003600.

The previous prime is 216007193. The next prime is 216007217. The reversal of 216007216 is 612700612.

It is not an unprimeable number, because it can be changed into a prime (216007217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6750210 + ... + 6750241.

Almost surely, 2^216007216 is an apocalyptic number.

It is an amenable number.

216007216 is a deficient number, since it is larger than the sum of its proper divisors (202506796).

216007216 is a wasteful number, since it uses less digits than its factorization.

216007216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13500459 (or 13500453 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 216007216 is about 14697.1839479541. The cubic root of 216007216 is about 600.0066814071.

Adding to 216007216 its reverse (612700612), we get a palindrome (828707828).

The spelling of 216007216 in words is "two hundred sixteen million, seven thousand, two hundred sixteen".