665567116 has 12 divisors (see below), whose sum is σ = 1165081680. Its totient is φ = 332686640.

The previous prime is 665567113. The next prime is 665567143. The reversal of 665567116 is 611765566.

It is not an unprimeable number, because it can be changed into a prime (665567113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7495 + ... + 37246.

It is an arithmetic number, because the mean of its divisors is an integer number (97090140).

Almost surely, 2^665567116 is an apocalyptic number.

It is an amenable number.

665567116 is a deficient number, since it is larger than the sum of its proper divisors (499514564).

665567116 is a wasteful number, since it uses less digits than its factorization.

665567116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48464 (or 48462 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 665567116 is about 25798.5874807130. The cubic root of 665567116 is about 873.0999274607.

The spelling of 665567116 in words is "six hundred sixty-five million, five hundred sixty-seven thousand, one hundred sixteen".