11576661 has 8 divisors (see below), whose sum is σ = 15492384. Its totient is φ = 7689360.

The previous prime is 11576657. The next prime is 11576687. The reversal of 11576661 is 16667511.

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

It is not a de Polignac number, because 11576661 - 2² = 11576657 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 (11576611) 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, 6135 + ... + 7796.

It is an arithmetic number, because the mean of its divisors is an integer number (1936548).

Almost surely, 2^11576661 is an apocalyptic number.

It is an amenable number.

11576661 is a deficient number, since it is larger than the sum of its proper divisors (3915723).

11576661 is a wasteful number, since it uses less digits than its factorization.

11576661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14211.

The product of its digits is 7560, while the sum is 33.

The square root of 11576661 is about 3402.4492648679. The cubic root of 11576661 is about 226.2183195877.

The spelling of 11576661 in words is "eleven million, five hundred seventy-six thousand, six hundred sixty-one".