199696266 has 120 divisors (see below), whose sum is σ = 568092096. Its totient is φ = 51846480.

The previous prime is 199696253. The next prime is 199696267. The reversal of 199696266 is 662696991.

It is a happy number.

199696266 is a `hidden beast` number, since 1 + 9 + 9 + 6 + 9 + 626 + 6 = 666.

199696266 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (199696267) 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 59 ways as a sum of consecutive naturals, for example, 86175 + ... + 88461.

Almost surely, 2^199696266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199696266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284046048).

199696266 is an abundant number, since it is smaller than the sum of its proper divisors (368395830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199696266 is a wasteful number, since it uses less digits than its factorization.

199696266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326 (or 2310 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 199696266 is about 14131.3929249738. The cubic root of 199696266 is about 584.5073564518.

The spelling of 199696266 in words is "one hundred ninety-nine million, six hundred ninety-six thousand, two hundred sixty-six".