563656656365 has 32 divisors (see below), whose sum is σ = 744870107520. Its totient is φ = 406049760000.

The previous prime is 563656656359. The next prime is 563656656373.

563656656365 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 563656656365 - 2²⁴ = 563639879149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 563656656298 and 563656656307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23230490 + ... + 23254740.

It is an arithmetic number, because the mean of its divisors is an integer number (23277190860).

Almost surely, 2^563656656365 is an apocalyptic number.

563656656365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

563656656365 is a deficient number, since it is larger than the sum of its proper divisors (181213451155).

563656656365 is a wasteful number, since it uses less digits than its factorization.

563656656365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28253.

The product of its digits is 262440000, while the sum is 62.

The spelling of 563656656365 in words is "five hundred sixty-three billion, six hundred fifty-six million, six hundred fifty-six thousand, three hundred sixty-five".