5561105005994 has 32 divisors (see below), whose sum is σ = 9169422944400. Its totient is φ = 2517757419520.

The previous prime is 5561105005993. The next prime is 5561105005997. The reversal of 5561105005994 is 4995005011655.

It can be written as a sum of positive squares in 8 ways, for example, as 4412163265225 + 1148941740769 = 2100515^2 + 1071887^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5561105005993) 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, 9758639 + ... + 10312770.

Almost surely, 2^{5561105005994} is an apocalyptic number.

5561105005994 is a deficient number, since it is larger than the sum of its proper divisors (3608317938406).

5561105005994 is a wasteful number, since it uses less digits than its factorization.

5561105005994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20071738.

The product of its (nonzero) digits is 1215000, while the sum is 50.

The spelling of 5561105005994 in words is "five trillion, five hundred sixty-one billion, one hundred five million, five thousand, nine hundred ninety-four".