11613665263649 has 2 divisors, whose sum is σ = 11613665263650. Its totient is φ = 11613665263648.

The previous prime is 11613665263643. The next prime is 11613665263693. The reversal of 11613665263649 is 94636256631611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6009082503649 + 5604582760000 = 2451343^2 + 2367400^2 .

It is a cyclic number.

It is not a de Polignac number, because 11613665263649 - 2³² = 11609370296353 is a prime.

It is not a weakly prime, because it can be changed into another prime (11613665263643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5806832631824 + 5806832631825.

It is an arithmetic number, because the mean of its divisors is an integer number (5806832631825).

Almost surely, 2^{11613665263649} is an apocalyptic number.

It is an amenable number.

11613665263649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11613665263649 is an equidigital number, since it uses as much as digits as its factorization.

11613665263649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25194240, while the sum is 59.

The spelling of 11613665263649 in words is "eleven trillion, six hundred thirteen billion, six hundred sixty-five million, two hundred sixty-three thousand, six hundred forty-nine".