65845544554856 has 32 divisors (see below), whose sum is σ = 134757949190400. Its totient is φ = 29913375027840.

The previous prime is 65845544554787. The next prime is 65845544554913.

65845544554856 is nontrivially palindromic in base 10.

65845544554856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205063061 + ... + 205383908.

It is an arithmetic number, because the mean of its divisors is an integer number (4211185912200).

Almost surely, 2^{65845544554856} is an apocalyptic number.

It is an amenable number.

65845544554856 is an abundant number, since it is smaller than the sum of its proper divisors (68912404635544).

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

65845544554856 is a wasteful number, since it uses less digits than its factorization.

65845544554856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410448809 (or 410448805 counting only the distinct ones).

The product of its digits is 9216000000, while the sum is 74.

The spelling of 65845544554856 in words is "sixty-five trillion, eight hundred forty-five billion, five hundred forty-four million, five hundred fifty-four thousand, eight hundred fifty-six".