11551228481159 has 2 divisors, whose sum is σ = 11551228481160. Its totient is φ = 11551228481158.

The previous prime is 11551228481129. The next prime is 11551228481201. The reversal of 11551228481159 is 95118482215511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11551228481159 - 2⁸ = 11551228480903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11551228481159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11551228481129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5775614240579 + 5775614240580.

It is an arithmetic number, because the mean of its divisors is an integer number (5775614240580).

Almost surely, 2^{11551228481159} is an apocalyptic number.

11551228481159 is a deficient number, since it is larger than the sum of its proper divisors (1).

11551228481159 is an equidigital number, since it uses as much as digits as its factorization.

11551228481159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152000, while the sum is 53.

The spelling of 11551228481159 in words is "eleven trillion, five hundred fifty-one billion, two hundred twenty-eight million, four hundred eighty-one thousand, one hundred fifty-nine".