665576116 has 24 divisors (see below), whose sum is σ = 1216422144. Its totient is φ = 318051360.

The previous prime is 665576111. The next prime is 665576141. The reversal of 665576116 is 611675566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665576111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146901 + ... + 151363.

It is an arithmetic number, because the mean of its divisors is an integer number (50684256).

Almost surely, 2^665576116 is an apocalyptic number.

It is an amenable number.

665576116 is a deficient number, since it is larger than the sum of its proper divisors (550846028).

665576116 is a wasteful number, since it uses less digits than its factorization.

665576116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111 (or 6109 counting only the distinct ones).

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

The square root of 665576116 is about 25798.7619082777. The cubic root of 665576116 is about 873.1038628834.

The spelling of 665576116 in words is "six hundred sixty-five million, five hundred seventy-six thousand, one hundred sixteen".