200165889 has 16 divisors (see below), whose sum is σ = 332743680. Its totient is φ = 103982160.

The previous prime is 200165887. The next prime is 200165929. The reversal of 200165889 is 988561002.

It is not a de Polignac number, because 200165889 - 2¹ = 200165887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200165887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433029 + ... + 433490.

It is an arithmetic number, because the mean of its divisors is an integer number (20796480).

Almost surely, 2^200165889 is an apocalyptic number.

It is an amenable number.

200165889 is a deficient number, since it is larger than the sum of its proper divisors (132577791).

200165889 is a wasteful number, since it uses less digits than its factorization.

200165889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866540.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 200165889 is about 14147.9994698897. Note that the first 3 decimals coincide. The cubic root of 200165889 is about 584.9651904191.

The spelling of 200165889 in words is "two hundred million, one hundred sixty-five thousand, eight hundred eighty-nine".