214606666 has 8 divisors (see below), whose sum is σ = 322310340. Its totient is φ = 107169888.

The previous prime is 214606649. The next prime is 214606727. The reversal of 214606666 is 666606412.

It can be written as a sum of positive squares in 2 ways, for example, as 208947025 + 5659641 = 14455^2 + 2379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 64701 + ... + 67936.

Almost surely, 2^214606666 is an apocalyptic number.

214606666 is a deficient number, since it is larger than the sum of its proper divisors (107703674).

214606666 is a wasteful number, since it uses less digits than its factorization.

214606666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133448.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 214606666 is about 14649.4595804760. The cubic root of 214606666 is about 598.7070919082.

The spelling of 214606666 in words is "two hundred fourteen million, six hundred six thousand, six hundred sixty-six".