11566171411 has 2 divisors, whose sum is σ = 11566171412. Its totient is φ = 11566171410.

The previous prime is 11566171367. The next prime is 11566171447. The reversal of 11566171411 is 11417166511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11566171411 is a prime.

It is a super-2 number, since 2×11566171411² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11566171711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5783085705 + 5783085706.

It is an arithmetic number, because the mean of its divisors is an integer number (5783085706).

Almost surely, 2^11566171411 is an apocalyptic number.

11566171411 is a deficient number, since it is larger than the sum of its proper divisors (1).

11566171411 is an equidigital number, since it uses as much as digits as its factorization.

11566171411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 34.

The spelling of 11566171411 in words is "eleven billion, five hundred sixty-six million, one hundred seventy-one thousand, four hundred eleven".