11556417167 has 2 divisors, whose sum is σ = 11556417168. Its totient is φ = 11556417166.

The previous prime is 11556417149. The next prime is 11556417209. The reversal of 11556417167 is 76171465511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11556417167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11556417667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778208583 + 5778208584.

It is an arithmetic number, because the mean of its divisors is an integer number (5778208584).

Almost surely, 2^11556417167 is an apocalyptic number.

11556417167 is a deficient number, since it is larger than the sum of its proper divisors (1).

11556417167 is an equidigital number, since it uses as much as digits as its factorization.

11556417167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 44.

The spelling of 11556417167 in words is "eleven billion, five hundred fifty-six million, four hundred seventeen thousand, one hundred sixty-seven".