200656566 has 48 divisors (see below), whose sum is σ = 478932480. Its totient is φ = 60208560.

The previous prime is 200656543. The next prime is 200656591. The reversal of 200656566 is 665656002.

200656566 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 200656566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15475 + ... + 25313.

It is an arithmetic number, because the mean of its divisors is an integer number (9977760).

Almost surely, 2^200656566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200656566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239466240).

200656566 is an abundant number, since it is smaller than the sum of its proper divisors (278275914).

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

200656566 is a wasteful number, since it uses less digits than its factorization.

200656566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9961 (or 9958 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 200656566 is about 14165.3297173063. The cubic root of 200656566 is about 585.4427855257.

The spelling of 200656566 in words is "two hundred million, six hundred fifty-six thousand, five hundred sixty-six".