11601156617 has 2 divisors, whose sum is σ = 11601156618. Its totient is φ = 11601156616.

The previous prime is 11601156587. The next prime is 11601156647. The reversal of 11601156617 is 71665110611.

It is a balanced prime because it is at equal distance from previous prime (11601156587) and next prime (11601156647).

It can be written as a sum of positive squares in only one way, i.e., 10778384761 + 822771856 = 103819^2 + 28684^2 .

It is a cyclic number.

It is not a de Polignac number, because 11601156617 - 2¹⁰ = 11601155593 is a prime.

It is not a weakly prime, because it can be changed into another prime (11601156647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5800578308 + 5800578309.

It is an arithmetic number, because the mean of its divisors is an integer number (5800578309).

Almost surely, 2^11601156617 is an apocalyptic number.

It is an amenable number.

11601156617 is a deficient number, since it is larger than the sum of its proper divisors (1).

11601156617 is an equidigital number, since it uses as much as digits as its factorization.

11601156617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 35.

The spelling of 11601156617 in words is "eleven billion, six hundred one million, one hundred fifty-six thousand, six hundred seventeen".