11563115223066 has 32 divisors (see below), whose sum is σ = 25250496043968. Its totient is φ = 3500935280640.

The previous prime is 11563115223043. The next prime is 11563115223067. The reversal of 11563115223066 is 66032251136511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11563115223067) 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 15 ways as a sum of consecutive naturals, for example, 75899061 + ... + 76051256.

It is an arithmetic number, because the mean of its divisors is an integer number (789078001374).

Almost surely, 2^{11563115223066} is an apocalyptic number.

11563115223066 is an abundant number, since it is smaller than the sum of its proper divisors (13687380820902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11563115223066 is a wasteful number, since it uses less digits than its factorization.

11563115223066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151951486.

The product of its (nonzero) digits is 194400, while the sum is 42.

Adding to 11563115223066 its reverse (66032251136511), we get a palindrome (77595366359577).

The spelling of 11563115223066 in words is "eleven trillion, five hundred sixty-three billion, one hundred fifteen million, two hundred twenty-three thousand, sixty-six".