66651314 has 8 divisors (see below), whose sum is σ = 100967148. Its totient is φ = 32995600.

The previous prime is 66651283. The next prime is 66651317. The reversal of 66651314 is 41315666.

66651314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 65885689 + 765625 = 8117^2 + 875^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66651317) 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 3 ways as a sum of consecutive naturals, for example, 164777 + ... + 165180.

Almost surely, 2^66651314 is an apocalyptic number.

66651314 is a deficient number, since it is larger than the sum of its proper divisors (34315834).

66651314 is a wasteful number, since it uses less digits than its factorization.

66651314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330060.

The product of its digits is 12960, while the sum is 32.

The square root of 66651314 is about 8164.0256001558. The cubic root of 66651314 is about 405.4490046420.

The spelling of 66651314 in words is "sixty-six million, six hundred fifty-one thousand, three hundred fourteen".