196666 has 8 divisors (see below), whose sum is σ = 298080. Its totient is φ = 97308.

The previous prime is 196663. The next prime is 196681. The reversal of 196666 is 666691.

It is a happy number.

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

196666 is a modest number, since divided by 666 gives 196 as remainder.

It is not an unprimeable number, because it can be changed into a prime (196661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246 + ... + 673.

It is an arithmetic number, because the mean of its divisors is an integer number (37260).

2¹⁹⁶⁶⁶⁶ is an apocalyptic number.

196666 is a deficient number, since it is larger than the sum of its proper divisors (101414).

196666 is a wasteful number, since it uses less digits than its factorization.

196666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028.

The product of its digits is 11664, while the sum is 34.

The square root of 196666 is about 443.4704048750. The cubic root of 196666 is about 58.1535763443.

The spelling of 196666 in words is "one hundred ninety-six thousand, six hundred sixty-six".