11306661 has 8 divisors (see below), whose sum is σ = 15561984. Its totient is φ = 7294560.

The previous prime is 11306657. The next prime is 11306681. The reversal of 11306661 is 16660311.

11306661 is nontrivially palindromic in base 13.

11306661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11306661 - 2² = 11306657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11306641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60696 + ... + 60881.

It is an arithmetic number, because the mean of its divisors is an integer number (1945248).

Almost surely, 2^11306661 is an apocalyptic number.

It is an amenable number.

11306661 is a deficient number, since it is larger than the sum of its proper divisors (4255323).

11306661 is a wasteful number, since it uses less digits than its factorization.

11306661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121611.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 11306661 is about 3362.5378808275. The cubic root of 11306661 is about 224.4457866160.

Adding to 11306661 its reverse (16660311), we get a palindrome (27966972).

The spelling of 11306661 in words is "eleven million, three hundred six thousand, six hundred sixty-one".