65217471256 has 16 divisors (see below), whose sum is σ = 139751724240. Its totient is φ = 27950344800.

The previous prime is 65217471227. The next prime is 65217471259.

65217471256 is nontrivially palindromic in base 10.

65217471256 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 not an unprimeable number, because it can be changed into a prime (65217471259) 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, 582298795 + ... + 582298906.

It is an arithmetic number, because the mean of its divisors is an integer number (8734482765).

Almost surely, 2^65217471256 is an apocalyptic number.

It is an amenable number.

65217471256 is an abundant number, since it is smaller than the sum of its proper divisors (74534252984).

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

65217471256 is a wasteful number, since it uses less digits than its factorization.

65217471256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164597714 (or 1164597710 counting only the distinct ones).

The product of its digits is 705600, while the sum is 46.

The spelling of 65217471256 in words is "sixty-five billion, two hundred seventeen million, four hundred seventy-one thousand, two hundred fifty-six".