66666314 has 32 divisors (see below), whose sum is σ = 118069056. Its totient is φ = 27832320.

The previous prime is 66666311. The next prime is 66666317. The reversal of 66666314 is 41366666.

It is an interprime number because it is at equal distance from previous prime (66666311) and next prime (66666317).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66666311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73049 + ... + 73955.

It is an arithmetic number, because the mean of its divisors is an integer number (3689658).

Almost surely, 2^66666314 is an apocalyptic number.

66666314 is a deficient number, since it is larger than the sum of its proper divisors (51402742).

66666314 is a wasteful number, since it uses less digits than its factorization.

66666314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190.

The product of its digits is 93312, while the sum is 38.

The square root of 66666314 is about 8164.9442129141. The cubic root of 66666314 is about 405.4794180403.

The spelling of 66666314 in words is "sixty-six million, six hundred sixty-six thousand, three hundred fourteen".