200540666 has 8 divisors (see below), whose sum is σ = 308941140. Its totient is φ = 97560288.

The previous prime is 200540663. The next prime is 200540677. The reversal of 200540666 is 666045002.

200540666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 199628641 + 912025 = 14129^2 + 955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (200540663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354931 + ... + 1355078.

Almost surely, 2^200540666 is an apocalyptic number.

200540666 is a deficient number, since it is larger than the sum of its proper divisors (108400474).

200540666 is a wasteful number, since it uses less digits than its factorization.

200540666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710048.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 200540666 is about 14161.2381520826. The cubic root of 200540666 is about 585.3300458192.

Adding to 200540666 its reverse (666045002), we get a palindrome (866585668).

The spelling of 200540666 in words is "two hundred million, five hundred forty thousand, six hundred sixty-six".