201298666 has 8 divisors (see below), whose sum is σ = 319709700. Its totient is φ = 94728768.

The previous prime is 201298651. The next prime is 201298667. The reversal of 201298666 is 666892102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 178783641 + 22515025 = 13371^2 + 4745^2 .

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

It is not an unprimeable number, because it can be changed into a prime (201298667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2960241 + ... + 2960308.

Almost surely, 2^201298666 is an apocalyptic number.

201298666 is a deficient number, since it is larger than the sum of its proper divisors (118411034).

201298666 is a wasteful number, since it uses less digits than its factorization.

201298666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920568.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 201298666 is about 14187.9761065488. The cubic root of 201298666 is about 586.0665919268.

The spelling of 201298666 in words is "two hundred one million, two hundred ninety-eight thousand, six hundred sixty-six".