11563155171166 has 16 divisors (see below), whose sum is σ = 17355869565264. Its totient is φ = 5777865679104.

The previous prime is 11563155171157. The next prime is 11563155171221. The reversal of 11563155171166 is 66117155136511.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 72969916 + ... + 73128208.

It is an arithmetic number, because the mean of its divisors is an integer number (1084741847829).

Almost surely, 2^{11563155171166} is an apocalyptic number.

11563155171166 is a deficient number, since it is larger than the sum of its proper divisors (5792714394098).

11563155171166 is a wasteful number, since it uses less digits than its factorization.

11563155171166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181515.

The product of its digits is 567000, while the sum is 49.

The spelling of 11563155171166 in words is "eleven trillion, five hundred sixty-three billion, one hundred fifty-five million, one hundred seventy-one thousand, one hundred sixty-six".