11591557288543 has 2 divisors, whose sum is σ = 11591557288544. Its totient is φ = 11591557288542.

The previous prime is 11591557288541. The next prime is 11591557288561. The reversal of 11591557288543 is 34588275519511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11591557288543 - 2¹ = 11591557288541 is a prime.

Together with 11591557288541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11591557288541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5795778644271 + 5795778644272.

It is an arithmetic number, because the mean of its divisors is an integer number (5795778644272).

Almost surely, 2^{11591557288543} is an apocalyptic number.

11591557288543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11591557288543 is an equidigital number, since it uses as much as digits as its factorization.

11591557288543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480000, while the sum is 64.

The spelling of 11591557288543 in words is "eleven trillion, five hundred ninety-one billion, five hundred fifty-seven million, two hundred eighty-eight thousand, five hundred forty-three".