65608616 has 16 divisors (see below), whose sum is σ = 125634240. Its totient is φ = 32106160.

The previous prime is 65608603. The next prime is 65608619. The reversal of 65608616 is 61680656.

It is a self number, because there is not a number n which added to its sum of digits gives 65608616.

It is not an unprimeable number, because it can be changed into a prime (65608619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86870 + ... + 87621.

It is an arithmetic number, because the mean of its divisors is an integer number (7852140).

Almost surely, 2^65608616 is an apocalyptic number.

It is an amenable number.

65608616 is a deficient number, since it is larger than the sum of its proper divisors (60025624).

65608616 is a wasteful number, since it uses less digits than its factorization.

65608616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174544 (or 174540 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 65608616 is about 8099.9145674507. The cubic root of 65608616 is about 403.3235912012.

The spelling of 65608616 in words is "sixty-five million, six hundred eight thousand, six hundred sixteen".