11555150422477 has 2 divisors, whose sum is σ = 11555150422478. Its totient is φ = 11555150422476.

The previous prime is 11555150422469. The next prime is 11555150422567. The reversal of 11555150422477 is 77422405155511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7244436019401 + 4310714403076 = 2691549^2 + 2076226^2 .

It is a cyclic number.

It is not a de Polignac number, because 11555150422477 - 2³ = 11555150422469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11555150422477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11555150422457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777575211238 + 5777575211239.

It is an arithmetic number, because the mean of its divisors is an integer number (5777575211239).

Almost surely, 2^{11555150422477} is an apocalyptic number.

It is an amenable number.

11555150422477 is a deficient number, since it is larger than the sum of its proper divisors (1).

11555150422477 is an equidigital number, since it uses as much as digits as its factorization.

11555150422477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960000, while the sum is 49.

Adding to 11555150422477 its reverse (77422405155511), we get a palindrome (88977555577988).

The spelling of 11555150422477 in words is "eleven trillion, five hundred fifty-five billion, one hundred fifty million, four hundred twenty-two thousand, four hundred seventy-seven".