66485683 has 8 divisors (see below), whose sum is σ = 74073600. Its totient is φ = 59155080.

The previous prime is 66485677. The next prime is 66485717. The reversal of 66485683 is 38658466.

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

It is a cyclic number.

It is not a de Polignac number, because 66485683 - 2⁵ = 66485651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66485183) by changing a digit.

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, 63783 + ... + 64816.

It is an arithmetic number, because the mean of its divisors is an integer number (9259200).

Almost surely, 2^66485683 is an apocalyptic number.

66485683 is a deficient number, since it is larger than the sum of its proper divisors (7587917).

66485683 is a wasteful number, since it uses less digits than its factorization.

66485683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128657.

The product of its digits is 829440, while the sum is 46.

The square root of 66485683 is about 8153.8753363048. The cubic root of 66485683 is about 405.1128740919.

The spelling of 66485683 in words is "sixty-six million, four hundred eighty-five thousand, six hundred eighty-three".