11165161 has 8 divisors (see below), whose sum is σ = 13071744. Its totient is φ = 9336480.

The previous prime is 11165159. The next prime is 11165171. The reversal of 11165161 is 16156111.

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 11165161 - 2¹ = 11165159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11165171) 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, 19165 + ... + 19738.

It is an arithmetic number, because the mean of its divisors is an integer number (1633968).

Almost surely, 2^11165161 is an apocalyptic number.

It is an amenable number.

11165161 is a deficient number, since it is larger than the sum of its proper divisors (1906583).

11165161 is an equidigital number, since it uses as much as digits as its factorization.

11165161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38951.

The product of its digits is 180, while the sum is 22.

The square root of 11165161 is about 3341.4309808823. The cubic root of 11165161 is about 223.5055593377.

The spelling of 11165161 in words is "eleven million, one hundred sixty-five thousand, one hundred sixty-one".