5631605205663 has 16 divisors (see below), whose sum is σ = 7762818868736. Its totient is φ = 3628741485600.

The previous prime is 5631605205661. The next prime is 5631605205679. The reversal of 5631605205663 is 3665025061365.

It is not a de Polignac number, because 5631605205663 - 2¹ = 5631605205661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631605205661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167980531 + ... + 168014052.

It is an arithmetic number, because the mean of its divisors is an integer number (485176179296).

Almost surely, 2^{5631605205663} is an apocalyptic number.

5631605205663 is a deficient number, since it is larger than the sum of its proper divisors (2131213663073).

5631605205663 is a wasteful number, since it uses less digits than its factorization.

5631605205663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335994774.

The product of its (nonzero) digits is 2916000, while the sum is 48.

The spelling of 5631605205663 in words is "five trillion, six hundred thirty-one billion, six hundred five million, two hundred five thousand, six hundred sixty-three".