11555150422591 has 2 divisors, whose sum is σ = 11555150422592. Its totient is φ = 11555150422590.

The previous prime is 11555150422567. The next prime is 11555150422639. The reversal of 11555150422591 is 19522405155511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11555150422591 - 2¹¹ = 11555150420543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11555150422391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777575211295 + 5777575211296.

It is an arithmetic number, because the mean of its divisors is an integer number (5777575211296).

Almost surely, 2^{11555150422591} is an apocalyptic number.

11555150422591 is a deficient number, since it is larger than the sum of its proper divisors (1).

11555150422591 is an equidigital number, since it uses as much as digits as its factorization.

11555150422591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450000, while the sum is 46.

The spelling of 11555150422591 in words is "eleven trillion, five hundred fifty-five billion, one hundred fifty million, four hundred twenty-two thousand, five hundred ninety-one".