66666014 has 8 divisors (see below), whose sum is σ = 100296768. Its totient is φ = 33233760.

The previous prime is 66666013. The next prime is 66666023. The reversal of 66666014 is 41066666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66666011) 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 3 ways as a sum of consecutive naturals, for example, 48782 + ... + 50129.

It is an arithmetic number, because the mean of its divisors is an integer number (12537096).

Almost surely, 2^66666014 is an apocalyptic number.

66666014 is a deficient number, since it is larger than the sum of its proper divisors (33630754).

66666014 is a wasteful number, since it uses less digits than its factorization.

66666014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99250.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 66666014 is about 8164.9258416718. The cubic root of 66666014 is about 405.4788098171.

The spelling of 66666014 in words is "sixty-six million, six hundred sixty-six thousand, fourteen".