565481673151823 has 4 divisors (see below), whose sum is σ = 573227997441648. Its totient is φ = 557735348862000.

The previous prime is 565481673151807. The next prime is 565481673151841. The reversal of 565481673151823 is 328151376184565.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 565481673151823 - 2⁴ = 565481673151807 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 565481673151823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565481673151223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3873162144803 + ... + 3873162144948.

It is an arithmetic number, because the mean of its divisors is an integer number (143306999360412).

Almost surely, 2^{565481673151823} is an apocalyptic number.

565481673151823 is a deficient number, since it is larger than the sum of its proper divisors (7746324289825).

565481673151823 is an equidigital number, since it uses as much as digits as its factorization.

565481673151823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746324289824.

The product of its digits is 145152000, while the sum is 65.

The spelling of 565481673151823 in words is "five hundred sixty-five trillion, four hundred eighty-one billion, six hundred seventy-three million, one hundred fifty-one thousand, eight hundred twenty-three".