11600101561 has 2 divisors, whose sum is σ = 11600101562. Its totient is φ = 11600101560.

The previous prime is 11600101547. The next prime is 11600101577. The reversal of 11600101561 is 16510100611.

11600101561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8162038336 + 3438063225 = 90344^2 + 58635^2 .

It is a cyclic number.

It is not a de Polignac number, because 11600101561 - 2²¹ = 11598004409 is a prime.

It is not a weakly prime, because it can be changed into another prime (11600101501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5800050780 + 5800050781.

It is an arithmetic number, because the mean of its divisors is an integer number (5800050781).

Almost surely, 2^11600101561 is an apocalyptic number.

It is an amenable number.

11600101561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11600101561 is an equidigital number, since it uses as much as digits as its factorization.

11600101561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 22.

The spelling of 11600101561 in words is "eleven billion, six hundred million, one hundred one thousand, five hundred sixty-one".