11326702561 has 2 divisors, whose sum is σ = 11326702562. Its totient is φ = 11326702560.

The previous prime is 11326702559. The next prime is 11326702601. The reversal of 11326702561 is 16520762311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10785861025 + 540841536 = 103855^2 + 23256^2 .

It is a cyclic number.

It is not a de Polignac number, because 11326702561 - 2¹ = 11326702559 is a prime.

Together with 11326702559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11326702511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5663351280 + 5663351281.

It is an arithmetic number, because the mean of its divisors is an integer number (5663351281).

Almost surely, 2^11326702561 is an apocalyptic number.

It is an amenable number.

11326702561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11326702561 is an equidigital number, since it uses as much as digits as its factorization.

11326702561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 11326702561 in words is "eleven billion, three hundred twenty-six million, seven hundred two thousand, five hundred sixty-one".