65505116616 has 16 divisors (see below), whose sum is σ = 163762791600. Its totient is φ = 21835038864.

The previous prime is 65505116597. The next prime is 65505116653. The reversal of 65505116616 is 61661150556.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364689906 + ... + 1364689953.

It is an arithmetic number, because the mean of its divisors is an integer number (10235174475).

Almost surely, 2^65505116616 is an apocalyptic number.

It is an amenable number.

65505116616 is an abundant number, since it is smaller than the sum of its proper divisors (98257674984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65505116616 is a wasteful number, since it uses less digits than its factorization.

65505116616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729379868 (or 2729379864 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 65505116616 in words is "sixty-five billion, five hundred five million, one hundred sixteen thousand, six hundred sixteen".