65340216256 has 56 divisors (see below), whose sum is σ = 150269423616. Its totient is φ = 27608528640.

The previous prime is 65340216233. The next prime is 65340216299. The reversal of 65340216256 is 65261204356.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 995296 + ... + 1058911.

Almost surely, 2^65340216256 is an apocalyptic number.

It is an amenable number.

65340216256 is an abundant number, since it is smaller than the sum of its proper divisors (84929207360).

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

65340216256 is a wasteful number, since it uses less digits than its factorization.

65340216256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054297 (or 2054287 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 65340216256 in words is "sixty-five billion, three hundred forty million, two hundred sixteen thousand, two hundred fifty-six".