5531361646663 has 4 divisors (see below), whose sum is σ = 5533494839248. Its totient is φ = 5529228454080.

The previous prime is 5531361646633. The next prime is 5531361646673. The reversal of 5531361646663 is 3666461631355.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5531361646663 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 (5531361646633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066592403 + ... + 1066597588.

It is an arithmetic number, because the mean of its divisors is an integer number (1383373709812).

Almost surely, 2^{5531361646663} is an apocalyptic number.

5531361646663 is a deficient number, since it is larger than the sum of its proper divisors (2133192585).

5531361646663 is a wasteful number, since it uses less digits than its factorization.

5531361646663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133192584.

The product of its digits is 20995200, while the sum is 55.

The spelling of 5531361646663 in words is "five trillion, five hundred thirty-one billion, three hundred sixty-one million, six hundred forty-six thousand, six hundred sixty-three".