196666583 has 8 divisors (see below), whose sum is σ = 205358208. Its totient is φ = 187986744.

The previous prime is 196666579. The next prime is 196666601. The reversal of 196666583 is 385666691.

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 196666583 - 2² = 196666579 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196666543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60116 + ... + 63302.

It is an arithmetic number, because the mean of its divisors is an integer number (25669776).

Almost surely, 2^196666583 is an apocalyptic number.

196666583 is a deficient number, since it is larger than the sum of its proper divisors (8691625).

196666583 is a wasteful number, since it uses less digits than its factorization.

196666583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893.

The product of its digits is 1399680, while the sum is 50.

The square root of 196666583 is about 14023.7863289484. The cubic root of 196666583 is about 581.5363380810.

The spelling of 196666583 in words is "one hundred ninety-six million, six hundred sixty-six thousand, five hundred eighty-three".