66316 has 12 divisors (see below), whose sum is σ = 118440. Its totient is φ = 32480.

The previous prime is 66301. The next prime is 66337. The reversal of 66316 is 61366.

It is an unprimeable number.

66316 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96 + ... + 376.

It is an arithmetic number, because the mean of its divisors is an integer number (9870).

2⁶⁶³¹⁶ is an apocalyptic number.

It is an amenable number.

66316 is a deficient number, since it is larger than the sum of its proper divisors (52124).

66316 is a wasteful number, since it uses less digits than its factorization.

66316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 342 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

The square root of 66316 is about 257.5189313429. The cubic root of 66316 is about 40.4767941032.

Subtracting from 66316 its reverse (61366), we obtain a triangular number (4950 = T₉₉).

The spelling of 66316 in words is "sixty-six thousand, three hundred sixteen".