11361663756649 has 2 divisors, whose sum is σ = 11361663756650. Its totient is φ = 11361663756648.

The previous prime is 11361663756589. The next prime is 11361663756691. The reversal of 11361663756649 is 94665736616311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6811578010000 + 4550085746649 = 2609900^2 + 2133093^2 .

It is a cyclic number.

It is not a de Polignac number, because 11361663756649 - 2¹⁵ = 11361663723881 is a prime.

It is not a weakly prime, because it can be changed into another prime (11361663756349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5680831878324 + 5680831878325.

It is an arithmetic number, because the mean of its divisors is an integer number (5680831878325).

Almost surely, 2^{11361663756649} is an apocalyptic number.

It is an amenable number.

11361663756649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11361663756649 is an equidigital number, since it uses as much as digits as its factorization.

11361663756649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88179840, while the sum is 64.

The spelling of 11361663756649 in words is "eleven trillion, three hundred sixty-one billion, six hundred sixty-three million, seven hundred fifty-six thousand, six hundred forty-nine".