200550111001 has 8 divisors (see below), whose sum is σ = 219669493320. Its totient is φ = 182244319488.

The previous prime is 200550110987. The next prime is 200550111007. The reversal of 200550111001 is 100111055002.

It can be written as a sum of positive squares in 4 ways, for example, as 114633707776 + 85916403225 = 338576^2 + 293115^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200550111001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200550111007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203397186 + ... + 203398171.

It is an arithmetic number, because the mean of its divisors is an integer number (27458686665).

Almost surely, 2^200550111001 is an apocalyptic number.

It is an amenable number.

200550111001 is a deficient number, since it is larger than the sum of its proper divisors (19119382319).

200550111001 is a wasteful number, since it uses less digits than its factorization.

200550111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406795403.

The product of its (nonzero) digits is 50, while the sum is 16.

Adding to 200550111001 its reverse (100111055002), we get a palindrome (300661166003).

The spelling of 200550111001 in words is "two hundred billion, five hundred fifty million, one hundred eleven thousand, one".