11517666 has 16 divisors (see below), whose sum is σ = 23260224. Its totient is φ = 3801744.

The previous prime is 11517659. The next prime is 11517673. The reversal of 11517666 is 66671511.

It is an interprime number because it is at equal distance from previous prime (11517659) and next prime (11517673).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8701 + ... + 9936.

It is an arithmetic number, because the mean of its divisors is an integer number (1453764).

Almost surely, 2^11517666 is an apocalyptic number.

11517666 is an abundant number, since it is smaller than the sum of its proper divisors (11742558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11517666 is a wasteful number, since it uses less digits than its factorization.

11517666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18745.

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

The square root of 11517666 is about 3393.7687016059. The cubic root of 11517666 is about 225.8333932756.

The spelling of 11517666 in words is "eleven million, five hundred seventeen thousand, six hundred sixty-six".