216014666 has 16 divisors (see below), whose sum is σ = 386411904. Its totient is φ = 88552464.

The previous prime is 216014663. The next prime is 216014693. The reversal of 216014666 is 666410612.

It is not an unprimeable number, because it can be changed into a prime (216014663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335105 + ... + 335748.

It is an arithmetic number, because the mean of its divisors is an integer number (24150744).

Almost surely, 2^216014666 is an apocalyptic number.

216014666 is a deficient number, since it is larger than the sum of its proper divisors (170397238).

216014666 is a wasteful number, since it uses less digits than its factorization.

216014666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670885.

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

The square root of 216014666 is about 14697.4373956823. The cubic root of 216014666 is about 600.0135793223.

The spelling of 216014666 in words is "two hundred sixteen million, fourteen thousand, six hundred sixty-six".