11680559 has 4 divisors (see below), whose sum is σ = 12742440. Its totient is φ = 10618680.

The previous prime is 11680519. The next prime is 11680577. The reversal of 11680559 is 95508611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11680559 - 2¹² = 11676463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11680519) 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, 530924 + ... + 530945.

It is an arithmetic number, because the mean of its divisors is an integer number (3185610).

Almost surely, 2^11680559 is an apocalyptic number.

11680559 is a deficient number, since it is larger than the sum of its proper divisors (1061881).

11680559 is a wasteful number, since it uses less digits than its factorization.

11680559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061880.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 11680559 is about 3417.6832796501. The cubic root of 11680559 is about 226.8930583617.

The spelling of 11680559 in words is "eleven million, six hundred eighty thousand, five hundred fifty-nine".