36561044400205 has 8 divisors (see below), whose sum is σ = 47248118917272. Its totient is φ = 26998925095488.

The previous prime is 36561044400203. The next prime is 36561044400227. The reversal of 36561044400205 is 50200444016563.

It can be written as a sum of positive squares in 4 ways, for example, as 3277537297609 + 33283507102596 = 1810397^2 + 5769186^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 36561044400205 - 2¹ = 36561044400203 is a prime.

It is a super-2 number, since 2×36561044400205² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36561044400203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281238803014 + ... + 281238803143.

It is an arithmetic number, because the mean of its divisors is an integer number (5906014864659).

Almost surely, 2^{36561044400205} is an apocalyptic number.

It is an amenable number.

36561044400205 is a deficient number, since it is larger than the sum of its proper divisors (10687074517067).

36561044400205 is a wasteful number, since it uses less digits than its factorization.

36561044400205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562477606175.

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 36561044400205 its reverse (50200444016563), we get a palindrome (86761488416768).

The spelling of 36561044400205 in words is "thirty-six trillion, five hundred sixty-one billion, forty-four million, four hundred thousand, two hundred five".