65115339616 has 24 divisors (see below), whose sum is σ = 130368639240. Its totient is φ = 32005843968.

The previous prime is 65115339607. The next prime is 65115339671. The reversal of 65115339616 is 61693351156.

65115339616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 17242641 + ... + 17246416.

It is an arithmetic number, because the mean of its divisors is an integer number (5432026635).

Almost surely, 2^65115339616 is an apocalyptic number.

It is an amenable number.

65115339616 is an abundant number, since it is smaller than the sum of its proper divisors (65253299624).

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

65115339616 is a wasteful number, since it uses less digits than its factorization.

65115339616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34489126 (or 34489118 counting only the distinct ones).

The product of its digits is 437400, while the sum is 46.

The spelling of 65115339616 in words is "sixty-five billion, one hundred fifteen million, three hundred thirty-nine thousand, six hundred sixteen".