11555150422478 has 32 divisors (see below), whose sum is σ = 19793206972224. Its totient is φ = 5012017500672.

The previous prime is 11555150422477. The next prime is 11555150422567. The reversal of 11555150422478 is 87422405155511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11555150422477) 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 in 15 ways as a sum of consecutive naturals, for example, 19008650 + ... + 19607117.

It is an arithmetic number, because the mean of its divisors is an integer number (618537717882).

Almost surely, 2^{11555150422478} is an apocalyptic number.

11555150422478 is a deficient number, since it is larger than the sum of its proper divisors (8238056549746).

11555150422478 is a wasteful number, since it uses less digits than its factorization.

11555150422478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38616476.

The product of its (nonzero) digits is 2240000, while the sum is 50.

Adding to 11555150422478 its reverse (87422405155511), we get a palindrome (98977555577989).

The spelling of 11555150422478 in words is "eleven trillion, five hundred fifty-five billion, one hundred fifty million, four hundred twenty-two thousand, four hundred seventy-eight".