11680567 has 4 divisors (see below), whose sum is σ = 11996296. Its totient is φ = 11364840.

The previous prime is 11680519. The next prime is 11680577. The reversal of 11680567 is 76508611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11680567 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 (11680577) 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, 157809 + ... + 157882.

It is an arithmetic number, because the mean of its divisors is an integer number (2999074).

Almost surely, 2^11680567 is an apocalyptic number.

11680567 is a deficient number, since it is larger than the sum of its proper divisors (315729).

11680567 is an equidigital number, since it uses as much as digits as its factorization.

11680567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315728.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 11680567 is about 3417.6844500334. The cubic root of 11680567 is about 226.8931101613.

The spelling of 11680567 in words is "eleven million, six hundred eighty thousand, five hundred sixty-seven".