65513536443 has 6 divisors (see below), whose sum is σ = 94630663764. Its totient is φ = 43675690956.

The previous prime is 65513536441. The next prime is 65513536447. The reversal of 65513536443 is 34463531556.

65513536443 is a `hidden beast` number, since 6 + 551 + 3 + 53 + 6 + 4 + 43 = 666.

It is not a de Polignac number, because 65513536443 - 2¹ = 65513536441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65513536441) 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, 3639640905 + ... + 3639640922.

It is an arithmetic number, because the mean of its divisors is an integer number (15771777294).

Almost surely, 2^65513536443 is an apocalyptic number.

65513536443 is a deficient number, since it is larger than the sum of its proper divisors (29117127321).

65513536443 is a wasteful number, since it uses less digits than its factorization.

65513536443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279281833 (or 7279281830 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 45.

The spelling of 65513536443 in words is "sixty-five billion, five hundred thirteen million, five hundred thirty-six thousand, four hundred forty-three".