11155510066 has 32 divisors (see below), whose sum is σ = 17454009600. Its totient is φ = 5343077376.

The previous prime is 11155510057. The next prime is 11155510073. The reversal of 11155510066 is 66001555111.

11155510066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 2234425 + ... + 2239411.

It is an arithmetic number, because the mean of its divisors is an integer number (545437800).

Almost surely, 2^11155510066 is an apocalyptic number.

11155510066 is a deficient number, since it is larger than the sum of its proper divisors (6298499534).

11155510066 is a wasteful number, since it uses less digits than its factorization.

11155510066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5538.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 11155510066 in words is "eleven billion, one hundred fifty-five million, five hundred ten thousand, sixty-six".