11855687159 has 2 divisors, whose sum is σ = 11855687160. Its totient is φ = 11855687158.

The previous prime is 11855687153. The next prime is 11855687197. The reversal of 11855687159 is 95178655811.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11855687159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11855687153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5927843579 + 5927843580.

It is an arithmetic number, because the mean of its divisors is an integer number (5927843580).

Almost surely, 2^11855687159 is an apocalyptic number.

11855687159 is a deficient number, since it is larger than the sum of its proper divisors (1).

11855687159 is an equidigital number, since it uses as much as digits as its factorization.

11855687159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024000, while the sum is 56.

The spelling of 11855687159 in words is "eleven billion, eight hundred fifty-five million, six hundred eighty-seven thousand, one hundred fifty-nine".