66683 has 2 divisors, whose sum is σ = 66684. Its totient is φ = 66682.

The previous prime is 66653. The next prime is 66697. The reversal of 66683 is 38666.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33341 + 33342.

It is an arithmetic number, because the mean of its divisors is an integer number (33342).

2⁶⁶⁶⁸³ is an apocalyptic number.

66683 is a deficient number, since it is larger than the sum of its proper divisors (1).

66683 is an equidigital number, since it uses as much as digits as its factorization.

66683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 66683 is about 258.2305171741. The cubic root of 66683 is about 40.5513244545.

It can be divided in two parts, 666 and 83, that multiplied together give a triangular number (55278 = T₃₃₂).

The spelling of 66683 in words is "sixty-six thousand, six hundred eighty-three".