11108661 has 4 divisors (see below), whose sum is σ = 14811552. Its totient is φ = 7405772.

The previous prime is 11108659. The next prime is 11108681. The reversal of 11108661 is 16680111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11108661 - 2¹ = 11108659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11108611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1851441 + ... + 1851446.

It is an arithmetic number, because the mean of its divisors is an integer number (3702888).

Almost surely, 2^11108661 is an apocalyptic number.

It is an amenable number.

11108661 is a deficient number, since it is larger than the sum of its proper divisors (3702891).

11108661 is an equidigital number, since it uses as much as digits as its factorization.

11108661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702890.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 11108661 is about 3332.9657964042. The cubic root of 11108661 is about 223.1279136372.

Adding to 11108661 its reverse (16680111), we get a palindrome (27788772).

The spelling of 11108661 in words is "eleven million, one hundred eight thousand, six hundred sixty-one".