11600566161601 has 2 divisors, whose sum is σ = 11600566161602. Its totient is φ = 11600566161600.

The previous prime is 11600566161599. The next prime is 11600566161647. The reversal of 11600566161601 is 10616166500611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11575917475600 + 24648686001 = 3402340^2 + 156999^2 .

It is a cyclic number.

It is not a de Polignac number, because 11600566161601 - 2¹ = 11600566161599 is a prime.

Together with 11600566161599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11600566161901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5800283080800 + 5800283080801.

It is an arithmetic number, because the mean of its divisors is an integer number (5800283080801).

Almost surely, 2^{11600566161601} is an apocalyptic number.

It is an amenable number.

11600566161601 is a deficient number, since it is larger than the sum of its proper divisors (1).

11600566161601 is an equidigital number, since it uses as much as digits as its factorization.

11600566161601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 11600566161601 in words is "eleven trillion, six hundred billion, five hundred sixty-six million, one hundred sixty-one thousand, six hundred one".