5561600565565 has 32 divisors (see below), whose sum is σ = 7709580860544. Its totient is φ = 3806541527040.

The previous prime is 5561600565533. The next prime is 5561600565571. The reversal of 5561600565565 is 5655650061655.

It is not a de Polignac number, because 5561600565565 - 2⁵ = 5561600565533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10806777 + ... + 11309713.

It is an arithmetic number, because the mean of its divisors is an integer number (240924401892).

Almost surely, 2^{5561600565565} is an apocalyptic number.

5561600565565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5561600565565 is a deficient number, since it is larger than the sum of its proper divisors (2147980294979).

5561600565565 is a wasteful number, since it uses less digits than its factorization.

5561600565565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514797.

The product of its (nonzero) digits is 20250000, while the sum is 55.

The spelling of 5561600565565 in words is "five trillion, five hundred sixty-one billion, six hundred million, five hundred sixty-five thousand, five hundred sixty-five".