206555322201 has 16 divisors (see below), whose sum is σ = 276806074368. Its totient is φ = 137005545600.

The previous prime is 206555322187. The next prime is 206555322223. The reversal of 206555322201 is 102223555602.

It is not a de Polignac number, because 206555322201 - 2⁷ = 206555322073 is a prime.

It is a super-2 number, since 2×206555322201² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206555322401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371880 + ... + 742566.

It is an arithmetic number, because the mean of its divisors is an integer number (17300379648).

Almost surely, 2^206555322201 is an apocalyptic number.

It is an amenable number.

206555322201 is a deficient number, since it is larger than the sum of its proper divisors (70250752167).

206555322201 is a wasteful number, since it uses less digits than its factorization.

206555322201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371632.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 206555322201 its reverse (102223555602), we get a palindrome (308778877803).

The spelling of 206555322201 in words is "two hundred six billion, five hundred fifty-five million, three hundred twenty-two thousand, two hundred one".