65516768 has 24 divisors (see below), whose sum is σ = 129979080. Its totient is φ = 32506240.

The previous prime is 65516767. The next prime is 65516783. The reversal of 65516768 is 86761556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65516767) 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, 3623 + ... + 12006.

It is an arithmetic number, because the mean of its divisors is an integer number (5415795).

Almost surely, 2^65516768 is an apocalyptic number.

It is an amenable number.

65516768 is a deficient number, since it is larger than the sum of its proper divisors (64462312).

65516768 is a wasteful number, since it uses less digits than its factorization.

65516768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15770 (or 15762 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 65516768 is about 8094.2428923279. The cubic root of 65516768 is about 403.1352939542.

The spelling of 65516768 in words is "sixty-five million, five hundred sixteen thousand, seven hundred sixty-eight".