65043240808 has 64 divisors (see below), whose sum is σ = 150137285760. Its totient is φ = 25724964096.

The previous prime is 65043240791. The next prime is 65043240811. The reversal of 65043240808 is 80804234056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3796710 + ... + 3813802.

It is an arithmetic number, because the mean of its divisors is an integer number (2345895090).

Almost surely, 2^65043240808 is an apocalyptic number.

It is an amenable number.

65043240808 is an abundant number, since it is smaller than the sum of its proper divisors (85094044952).

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

65043240808 is a wasteful number, since it uses less digits than its factorization.

65043240808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22346 (or 22342 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 65043240808 in words is "sixty-five billion, forty-three million, two hundred forty thousand, eight hundred eight".