65504240556 has 12 divisors (see below), whose sum is σ = 152843227992. Its totient is φ = 21834746848.

The previous prime is 65504240519. The next prime is 65504240569.

It is a happy number.

65504240556 is nontrivially palindromic in base 10.

65504240556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2729343345 + ... + 2729343368.

It is an arithmetic number, because the mean of its divisors is an integer number (12736935666).

Almost surely, 2^65504240556 is an apocalyptic number.

It is an amenable number.

65504240556 is an abundant number, since it is smaller than the sum of its proper divisors (87338987436).

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

65504240556 is a wasteful number, since it uses less digits than its factorization.

65504240556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5458686720 (or 5458686718 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 65504240556 in words is "sixty-five billion, five hundred four million, two hundred forty thousand, five hundred fifty-six".