200666660 has 48 divisors (see below), whose sum is σ = 440294400. Its totient is φ = 76723584.

The previous prime is 200666659. The next prime is 200666723. The reversal of 200666660 is 66666002.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 58061 + ... + 61419.

It is an arithmetic number, because the mean of its divisors is an integer number (9172800).

Almost surely, 2^200666660 is an apocalyptic number.

200666660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200666660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220147200).

200666660 is an abundant number, since it is smaller than the sum of its proper divisors (239627740).

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

200666660 is a wasteful number, since it uses less digits than its factorization.

200666660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500 (or 3498 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 200666660 is about 14165.6860052734. The cubic root of 200666660 is about 585.4526022331.

The spelling of 200666660 in words is "two hundred million, six hundred sixty-six thousand, six hundred sixty".