11155000111166 has 4 divisors (see below), whose sum is σ = 16732500166752. Its totient is φ = 5577500055582.

The previous prime is 11155000111147. The next prime is 11155000111181. The reversal of 11155000111166 is 66111100055111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11155000111166² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2788750027790 + ... + 2788750027793.

It is an arithmetic number, because the mean of its divisors is an integer number (4183125041688).

Almost surely, 2^{11155000111166} is an apocalyptic number.

11155000111166 is a deficient number, since it is larger than the sum of its proper divisors (5577500055586).

11155000111166 is an equidigital number, since it uses as much as digits as its factorization.

11155000111166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5577500055585.

The product of its (nonzero) digits is 900, while the sum is 29.

Adding to 11155000111166 its reverse (66111100055111), we get a palindrome (77266100166277).

The spelling of 11155000111166 in words is "eleven trillion, one hundred fifty-five billion, one hundred eleven thousand, one hundred sixty-six".