65256865256 has 24 divisors (see below), whose sum is σ = 134491165410. Its totient is φ = 29662211040.

The previous prime is 65256865249. The next prime is 65256865259.

65256865256 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 41439116356 + 23817748900 = 203566^2 + 154330^2 .

It is not an unprimeable number, because it can be changed into a prime (65256865259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33706091 + ... + 33708026.

Almost surely, 2^65256865256 is an apocalyptic number.

It is an amenable number.

65256865256 is an abundant number, since it is smaller than the sum of its proper divisors (69234300154).

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

65256865256 is a wasteful number, since it uses less digits than its factorization.

65256865256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67414145 (or 67414130 counting only the distinct ones).

The product of its digits is 25920000, while the sum is 56.

The spelling of 65256865256 in words is "sixty-five billion, two hundred fifty-six million, eight hundred sixty-five thousand, two hundred fifty-six".