11144022661 has 2 divisors, whose sum is σ = 11144022662. Its totient is φ = 11144022660.

The previous prime is 11144022641. The next prime is 11144022677. The reversal of 11144022661 is 16622044111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6163192036 + 4980830625 = 78506^2 + 70575^2 .

It is a cyclic number.

It is not a de Polignac number, because 11144022661 - 2¹⁵ = 11143989893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11144022611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5572011330 + 5572011331.

It is an arithmetic number, because the mean of its divisors is an integer number (5572011331).

Almost surely, 2^11144022661 is an apocalyptic number.

It is an amenable number.

11144022661 is a deficient number, since it is larger than the sum of its proper divisors (1).

11144022661 is an equidigital number, since it uses as much as digits as its factorization.

11144022661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 11144022661 its reverse (16622044111), we get a palindrome (27766066772).

The spelling of 11144022661 in words is "eleven billion, one hundred forty-four million, twenty-two thousand, six hundred sixty-one".