3661444236211 has 2 divisors, whose sum is σ = 3661444236212. Its totient is φ = 3661444236210.

The previous prime is 3661444236143. The next prime is 3661444236227. The reversal of 3661444236211 is 1126324441663.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3661444236211 is a prime.

It is not a weakly prime, because it can be changed into another prime (3661444236251) 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 as a sum of consecutive naturals, namely, 1830722118105 + 1830722118106.

It is an arithmetic number, because the mean of its divisors is an integer number (1830722118106).

Almost surely, 2^{3661444236211} is an apocalyptic number.

3661444236211 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661444236211 is an equidigital number, since it uses as much as digits as its factorization.

3661444236211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 43.

Adding to 3661444236211 its reverse (1126324441663), we get a palindrome (4787768677874).

The spelling of 3661444236211 in words is "three trillion, six hundred sixty-one billion, four hundred forty-four million, two hundred thirty-six thousand, two hundred eleven".