196666763 has 8 divisors (see below), whose sum is σ = 199298880. Its totient is φ = 194052040.

The previous prime is 196666747. The next prime is 196666819. The reversal of 196666763 is 367666691.

It is a happy number.

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 196666763 - 2⁴ = 196666747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196666703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19256 + ... + 27642.

It is an arithmetic number, because the mean of its divisors is an integer number (24912360).

Almost surely, 2^196666763 is an apocalyptic number.

196666763 is a deficient number, since it is larger than the sum of its proper divisors (2632117).

196666763 is a wasteful number, since it uses less digits than its factorization.

196666763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8697.

The product of its digits is 1469664, while the sum is 50.

The square root of 196666763 is about 14023.7927466146. The cubic root of 196666763 is about 581.5365154989.

The spelling of 196666763 in words is "one hundred ninety-six million, six hundred sixty-six thousand, seven hundred sixty-three".