11166055165 has 8 divisors (see below), whose sum is σ = 13861310040. Its totient is φ = 8624814912.

The previous prime is 11166055163. The next prime is 11166055171. The reversal of 11166055165 is 56155066111.

It can be written as a sum of positive squares in 4 ways, for example, as 3434194404 + 7731860761 = 58602^2 + 87931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11166055165 - 2¹ = 11166055163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11166055163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38503494 + ... + 38503783.

It is an arithmetic number, because the mean of its divisors is an integer number (1732663755).

Almost surely, 2^11166055165 is an apocalyptic number.

It is an amenable number.

11166055165 is a deficient number, since it is larger than the sum of its proper divisors (2695254875).

11166055165 is an equidigital number, since it uses as much as digits as its factorization.

11166055165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77007311.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 11166055165 in words is "eleven billion, one hundred sixty-six million, fifty-five thousand, one hundred sixty-five".