11155227506 has 16 divisors (see below), whose sum is σ = 16775275608. Its totient is φ = 5563488000.

The previous prime is 11155227487. The next prime is 11155227509. The reversal of 11155227506 is 60572255111.

11155227506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10855764481 + 299463025 = 104191^2 + 17305^2 .

It is not an unprimeable number, because it can be changed into a prime (11155227509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1427546 + ... + 1435338.

Almost surely, 2^11155227506 is an apocalyptic number.

11155227506 is a deficient number, since it is larger than the sum of its proper divisors (5620048102).

11155227506 is a wasteful number, since it uses less digits than its factorization.

11155227506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9517.

The product of its (nonzero) digits is 21000, while the sum is 35.

The spelling of 11155227506 in words is "eleven billion, one hundred fifty-five million, two hundred twenty-seven thousand, five hundred six".