13161166 has 4 divisors (see below), whose sum is σ = 19741752. Its totient is φ = 6580582.

The previous prime is 13161151. The next prime is 13161173. The reversal of 13161166 is 66116131.

13161166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66116131 = 61 ⋅1083871.

It is a self number, because there is not a number n which added to its sum of digits gives 13161166.

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, 3290290 + ... + 3290293.

It is an arithmetic number, because the mean of its divisors is an integer number (4935438).

Almost surely, 2^13161166 is an apocalyptic number.

13161166 is a deficient number, since it is larger than the sum of its proper divisors (6580586).

13161166 is an equidigital number, since it uses as much as digits as its factorization.

13161166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6580585.

The product of its digits is 648, while the sum is 25.

The square root of 13161166 is about 3627.8321350360. The cubic root of 13161166 is about 236.1011607874.

Adding to 13161166 its reverse (66116131), we get a palindrome (79277297).

The spelling of 13161166 in words is "thirteen million, one hundred sixty-one thousand, one hundred sixty-six".