56565511556565 has 16 divisors (see below), whose sum is σ = 98732529262656. Its totient is φ = 27425702572800.

The previous prime is 56565511556537. The next prime is 56565511556573.

56565511556565 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56565511556565 - 2¹² = 56565511552469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56565511556496 and 56565511556505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171410640916 + ... + 171410641245.

It is an arithmetic number, because the mean of its divisors is an integer number (6170783078916).

Almost surely, 2^{56565511556565} is an apocalyptic number.

56565511556565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56565511556565 is a deficient number, since it is larger than the sum of its proper divisors (42167017706091).

56565511556565 is a wasteful number, since it uses less digits than its factorization.

56565511556565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342821282180.

The product of its digits is 506250000, while the sum is 66.

The spelling of 56565511556565 in words is "fifty-six trillion, five hundred sixty-five billion, five hundred eleven million, five hundred fifty-six thousand, five hundred sixty-five".