200666605 has 8 divisors (see below), whose sum is σ = 251269632. Its totient is φ = 153553488.

The previous prime is 200666603. The next prime is 200666629. The reversal of 200666605 is 506666002.

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 200666605 - 2¹ = 200666603 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 (200666603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872349 + ... + 872578.

It is an arithmetic number, because the mean of its divisors is an integer number (31408704).

Almost surely, 2^200666605 is an apocalyptic number.

It is an amenable number.

200666605 is a deficient number, since it is larger than the sum of its proper divisors (50603027).

200666605 is a wasteful number, since it uses less digits than its factorization.

200666605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744955.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 200666605 is about 14165.6840639625. The cubic root of 200666605 is about 585.4525487449.

The spelling of 200666605 in words is "two hundred million, six hundred sixty-six thousand, six hundred five".