216566150 has 12 divisors (see below), whose sum is σ = 402813132. Its totient is φ = 86626440.

The previous prime is 216566149. The next prime is 216566153. The reversal of 216566150 is 51665612.

216566150 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216566153) 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, 2165612 + ... + 2165711.

It is an arithmetic number, because the mean of its divisors is an integer number (33567761).

Almost surely, 2^216566150 is an apocalyptic number.

216566150 is a deficient number, since it is larger than the sum of its proper divisors (186246982).

216566150 is a wasteful number, since it uses less digits than its factorization.

216566150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331335 (or 4331330 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 216566150 is about 14716.1866663888. The cubic root of 216566150 is about 600.5237556300.

The spelling of 216566150 in words is "two hundred sixteen million, five hundred sixty-six thousand, one hundred fifty".