11520566089 has 2 divisors, whose sum is σ = 11520566090. Its totient is φ = 11520566088.

The previous prime is 11520566041. The next prime is 11520566119. The reversal of 11520566089 is 98066502511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6024864400 + 5495701689 = 77620^2 + 74133^2 .

It is a cyclic number.

It is not a de Polignac number, because 11520566089 - 2⁷ = 11520565961 is a prime.

It is a super-2 number, since 2×11520566089² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11520566389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760283044 + 5760283045.

It is an arithmetic number, because the mean of its divisors is an integer number (5760283045).

Almost surely, 2^11520566089 is an apocalyptic number.

It is an amenable number.

11520566089 is a deficient number, since it is larger than the sum of its proper divisors (1).

11520566089 is an equidigital number, since it uses as much as digits as its factorization.

11520566089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 11520566089 in words is "eleven billion, five hundred twenty million, five hundred sixty-six thousand, eighty-nine".