200116661 has 8 divisors (see below), whose sum is σ = 203793504. Its totient is φ = 196452720.

The previous prime is 200116649. The next prime is 200116663. The reversal of 200116661 is 166611002.

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 200116661 - 2¹⁰ = 200115637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200116663) 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, 31430 + ... + 37256.

It is an arithmetic number, because the mean of its divisors is an integer number (25474188).

Almost surely, 2^200116661 is an apocalyptic number.

It is an amenable number.

200116661 is a deficient number, since it is larger than the sum of its proper divisors (3676843).

200116661 is an equidigital number, since it uses as much as digits as its factorization.

200116661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 200116661 is about 14146.2596116429. The cubic root of 200116661 is about 584.9172318190.

Adding to 200116661 its reverse (166611002), we get a palindrome (366727663).

The spelling of 200116661 in words is "two hundred million, one hundred sixteen thousand, six hundred sixty-one".