11616161 has 8 divisors (see below), whose sum is σ = 11950848. Its totient is φ = 11284000.

The previous prime is 11616139. The next prime is 11616167. The reversal of 11616161 is 16161611.

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 11616161 - 2²² = 7421857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11616167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12296 + ... + 13206.

It is an arithmetic number, because the mean of its divisors is an integer number (1493856).

Almost surely, 2^11616161 is an apocalyptic number.

It is an amenable number.

11616161 is a deficient number, since it is larger than the sum of its proper divisors (334687).

11616161 is an equidigital number, since it uses as much as digits as its factorization.

11616161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263.

The product of its digits is 216, while the sum is 23.

The square root of 11616161 is about 3408.2489639109. The cubic root of 11616161 is about 226.4753159689.

Adding to 11616161 its reverse (16161611), we get a palindrome (27777772).

The spelling of 11616161 in words is "eleven million, six hundred sixteen thousand, one hundred sixty-one".