66713318 has 16 divisors (see below), whose sum is σ = 114631200. Its totient is φ = 28525056.

The previous prime is 66713303. The next prime is 66713359. The reversal of 66713318 is 81331766.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980 + ... + 11592.

It is an arithmetic number, because the mean of its divisors is an integer number (7164450).

Almost surely, 2^66713318 is an apocalyptic number.

66713318 is a deficient number, since it is larger than the sum of its proper divisors (47917882).

66713318 is a wasteful number, since it uses less digits than its factorization.

66713318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11071.

The product of its digits is 18144, while the sum is 35.

The square root of 66713318 is about 8167.8221087387. The cubic root of 66713318 is about 405.5746919294.

The spelling of 66713318 in words is "sixty-six million, seven hundred thirteen thousand, three hundred eighteen".