565056111998 has 64 divisors (see below), whose sum is σ = 977845841280. Its totient is φ = 239887872000.

The previous prime is 565056111979. The next prime is 565056112009. The reversal of 565056111998 is 899111650565.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940192898 + ... + 940193498.

It is an arithmetic number, because the mean of its divisors is an integer number (15278841270).

Almost surely, 2^565056111998 is an apocalyptic number.

565056111998 is a deficient number, since it is larger than the sum of its proper divisors (412789729282).

565056111998 is a wasteful number, since it uses less digits than its factorization.

565056111998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893.

The product of its (nonzero) digits is 2916000, while the sum is 56.

The spelling of 565056111998 in words is "five hundred sixty-five billion, fifty-six million, one hundred eleven thousand, nine hundred ninety-eight".