11665516 has 12 divisors (see below), whose sum is σ = 20522880. Its totient is φ = 5801840.

The previous prime is 11665501. The next prime is 11665523. The reversal of 11665516 is 61556611.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6871 + ... + 8398.

It is an arithmetic number, because the mean of its divisors is an integer number (1710240).

Almost surely, 2^11665516 is an apocalyptic number.

It is an amenable number.

11665516 is a deficient number, since it is larger than the sum of its proper divisors (8857364).

11665516 is a wasteful number, since it uses less digits than its factorization.

11665516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15464 (or 15462 counting only the distinct ones).

The product of its digits is 5400, while the sum is 31.

The square root of 11665516 is about 3415.4818108138. The cubic root of 11665516 is about 226.7956138657.

The spelling of 11665516 in words is "eleven million, six hundred sixty-five thousand, five hundred sixteen".