11368594561 has 2 divisors, whose sum is σ = 11368594562. Its totient is φ = 11368594560.

The previous prime is 11368594543. The next prime is 11368594613. The reversal of 11368594561 is 16549586311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9073705536 + 2294889025 = 95256^2 + 47905^2 .

It is a cyclic number.

It is not a de Polignac number, because 11368594561 - 2⁹ = 11368594049 is a prime.

It is not a weakly prime, because it can be changed into another prime (11368594511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5684297280 + 5684297281.

It is an arithmetic number, because the mean of its divisors is an integer number (5684297281).

Almost surely, 2^11368594561 is an apocalyptic number.

It is an amenable number.

11368594561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11368594561 is an equidigital number, since it uses as much as digits as its factorization.

11368594561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 49.

The spelling of 11368594561 in words is "eleven billion, three hundred sixty-eight million, five hundred ninety-four thousand, five hundred sixty-one".