216108266 has 8 divisors (see below), whose sum is σ = 353631744. Its totient is φ = 98231020.

The previous prime is 216108257. The next prime is 216108281. The reversal of 216108266 is 662801612.

216108266 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4911530 + ... + 4911573.

It is an arithmetic number, because the mean of its divisors is an integer number (44203968).

Almost surely, 2^216108266 is an apocalyptic number.

216108266 is a deficient number, since it is larger than the sum of its proper divisors (137523478).

216108266 is a wasteful number, since it uses less digits than its factorization.

216108266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9823116.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 216108266 is about 14700.6212793882. The cubic root of 216108266 is about 600.1002295521.

Adding to 216108266 its reverse (662801612), we get a palindrome (878909878).

The spelling of 216108266 in words is "two hundred sixteen million, one hundred eight thousand, two hundred sixty-six".