200661109287 has 16 divisors (see below), whose sum is σ = 271333390560. Its totient is φ = 131883075072.

The previous prime is 200661109261. The next prime is 200661109289. The reversal of 200661109287 is 782901166002.

200661109287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200661109287 - 2¹⁴ = 200661092903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200661109289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295003 + ... + 698819.

It is an arithmetic number, because the mean of its divisors is an integer number (16958336910).

Almost surely, 2^200661109287 is an apocalyptic number.

200661109287 is a deficient number, since it is larger than the sum of its proper divisors (70672281273).

200661109287 is a wasteful number, since it uses less digits than its factorization.

200661109287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406162.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 200661109287 in words is "two hundred billion, six hundred sixty-one million, one hundred nine thousand, two hundred eighty-seven".