11375605246661 has 2 divisors, whose sum is σ = 11375605246662. Its totient is φ = 11375605246660.

The previous prime is 11375605246637. The next prime is 11375605246679. The reversal of 11375605246661 is 16664250657311.

11375605246661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10623623172100 + 751982074561 = 3259390^2 + 867169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11375605246661 is a prime.

It is a super-2 number, since 2×11375605246661² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11375605246631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5687802623330 + 5687802623331.

It is an arithmetic number, because the mean of its divisors is an integer number (5687802623331).

Almost surely, 2^{11375605246661} is an apocalyptic number.

It is an amenable number.

11375605246661 is a deficient number, since it is larger than the sum of its proper divisors (1).

11375605246661 is an equidigital number, since it uses as much as digits as its factorization.

11375605246661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 11375605246661 in words is "eleven trillion, three hundred seventy-five billion, six hundred five million, two hundred forty-six thousand, six hundred sixty-one".