201199966 has 16 divisors (see below), whose sum is σ = 330720768. Its totient is φ = 91042200.

The previous prime is 201199963. The next prime is 201200009. The reversal of 201199966 is 669991102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201199961) 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, 15600 + ... + 25411.

It is an arithmetic number, because the mean of its divisors is an integer number (20670048).

Almost surely, 2^201199966 is an apocalyptic number.

201199966 is a deficient number, since it is larger than the sum of its proper divisors (129520802).

201199966 is a wasteful number, since it uses less digits than its factorization.

201199966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41247.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 201199966 is about 14184.4973827062. The cubic root of 201199966 is about 585.9707902830.

The spelling of 201199966 in words is "two hundred one million, one hundred ninety-nine thousand, nine hundred sixty-six".