5543561566216 has 8 divisors (see below), whose sum is σ = 10394177936670. Its totient is φ = 2771780783104.

The previous prime is 5543561566211. The next prime is 5543561566253. The reversal of 5543561566216 is 6126651653455.

It can be written as a sum of positive squares in only one way, i.e., 5466926717316 + 76634848900 = 2338146^2 + 276830^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (5543561566211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346472597881 + ... + 346472597896.

Almost surely, 2^{5543561566216} is an apocalyptic number.

It is an amenable number.

5543561566216 is a deficient number, since it is larger than the sum of its proper divisors (4850616370454).

5543561566216 is a wasteful number, since it uses less digits than its factorization.

5543561566216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692945195783 (or 692945195779 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 55.

It can be divided in two parts, 55435 and 61566216, that added together give a triangular number (61621651 = T₁₁₁₀₁).

The spelling of 5543561566216 in words is "five trillion, five hundred forty-three billion, five hundred sixty-one million, five hundred sixty-six thousand, two hundred sixteen".