65516516 has 48 divisors (see below), whose sum is σ = 129077760. Its totient is φ = 28892160.

The previous prime is 65516509. The next prime is 65516519. The reversal of 65516516 is 61561556.

It is not an unprimeable number, because it can be changed into a prime (65516519) 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 15 ways as a sum of consecutive naturals, for example, 156155 + ... + 156573.

It is an arithmetic number, because the mean of its divisors is an integer number (2689120).

Almost surely, 2^65516516 is an apocalyptic number.

It is an amenable number.

65516516 is a deficient number, since it is larger than the sum of its proper divisors (63561244).

65516516 is a wasteful number, since it uses less digits than its factorization.

65516516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 562 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

The square root of 65516516 is about 8094.2273256933. The cubic root of 65516516 is about 403.1347770880.

It can be divided in two parts, 655 and 16516, that added together give a palindrome (17171).

The spelling of 65516516 in words is "sixty-five million, five hundred sixteen thousand, five hundred sixteen".