65568534073 has 8 divisors (see below), whose sum is σ = 75079301760. Its totient is φ = 56093724960.

The previous prime is 65568534049. The next prime is 65568534179. The reversal of 65568534073 is 37043586556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65568534073 - 2²¹ = 65566436921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65568534073.

It is not an unprimeable number, because it can be changed into a prime (65568531073) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8985733 + ... + 8993026.

It is an arithmetic number, because the mean of its divisors is an integer number (9384912720).

Almost surely, 2^65568534073 is an apocalyptic number.

It is an amenable number.

65568534073 is a deficient number, since it is larger than the sum of its proper divisors (9510767687).

65568534073 is a wasteful number, since it uses less digits than its factorization.

65568534073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17979287.

The product of its (nonzero) digits is 9072000, while the sum is 52.

The spelling of 65568534073 in words is "sixty-five billion, five hundred sixty-eight million, five hundred thirty-four thousand, seventy-three".