11126416661 has 2 divisors, whose sum is σ = 11126416662. Its totient is φ = 11126416660.

The previous prime is 11126416633. The next prime is 11126416667. The reversal of 11126416661 is 16661462111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5995559761 + 5130856900 = 77431^2 + 71630^2 .

It is a cyclic number.

It is not a de Polignac number, because 11126416661 - 2⁶ = 11126416597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11126416667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5563208330 + 5563208331.

It is an arithmetic number, because the mean of its divisors is an integer number (5563208331).

Almost surely, 2^11126416661 is an apocalyptic number.

It is an amenable number.

11126416661 is a deficient number, since it is larger than the sum of its proper divisors (1).

11126416661 is an equidigital number, since it uses as much as digits as its factorization.

11126416661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

Adding to 11126416661 its reverse (16661462111), we get a palindrome (27787878772).

The spelling of 11126416661 in words is "eleven billion, one hundred twenty-six million, four hundred sixteen thousand, six hundred sixty-one".