200943666 has 160 divisors (see below), whose sum is σ = 570810240. Its totient is φ = 51321600.

The previous prime is 200943661. The next prime is 200943671. The reversal of 200943666 is 666349002.

200943666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (200943661) and next prime (200943671).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200943666.

It is not an unprimeable number, because it can be changed into a prime (200943661) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1110096 + ... + 1110276.

It is an arithmetic number, because the mean of its divisors is an integer number (3567564).

Almost surely, 2^200943666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200943666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285405120).

200943666 is an abundant number, since it is smaller than the sum of its proper divisors (369866574).

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

200943666 is a wasteful number, since it uses less digits than its factorization.

200943666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 200943666 is about 14175.4599925364. The cubic root of 200943666 is about 585.7218702114.

The spelling of 200943666 in words is "two hundred million, nine hundred forty-three thousand, six hundred sixty-six".