65313271296 has 480 divisors, whose sum is σ = 242228558880. Its totient is φ = 17223155712.

The previous prime is 65313271279. The next prime is 65313271307. The reversal of 65313271296 is 69217231356.

65313271296 is a `hidden beast` number, since 6 + 5 + 31 + 327 + 1 + 296 = 666.

65313271296 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 47 ways as a sum of consecutive naturals, for example, 8802180 + ... + 8809596.

It is an arithmetic number, because the mean of its divisors is an integer number (504642831).

Almost surely, 2^65313271296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65313271296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121114279440).

65313271296 is an abundant number, since it is smaller than the sum of its proper divisors (176915287584).

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

65313271296 is a wasteful number, since it uses less digits than its factorization.

65313271296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7471 (or 7442 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The spelling of 65313271296 in words is "sixty-five billion, three hundred thirteen million, two hundred seventy-one thousand, two hundred ninety-six".