11665716 has 24 divisors (see below), whose sum is σ = 27683040. Its totient is φ = 3822432.

The previous prime is 11665699. The next prime is 11665739. The reversal of 11665716 is 61756611.

It is a congruent 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, 7531 + ... + 8946.

It is an arithmetic number, because the mean of its divisors is an integer number (1153460).

Almost surely, 2^11665716 is an apocalyptic number.

It is an amenable number.

11665716 is an abundant number, since it is smaller than the sum of its proper divisors (16017324).

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

11665716 is a wasteful number, since it uses less digits than its factorization.

11665716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16543 (or 16541 counting only the distinct ones).

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

The square root of 11665716 is about 3415.5110891344. The cubic root of 11665716 is about 226.7969099610.

The spelling of 11665716 in words is "eleven million, six hundred sixty-five thousand, seven hundred sixteen".