5555005550566 has 4 divisors (see below), whose sum is σ = 8332508325852. Its totient is φ = 2777502775282.

The previous prime is 5555005550561. The next prime is 5555005550569. The reversal of 5555005550566 is 6650555005555.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555005550561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388751387640 + ... + 1388751387643.

It is an arithmetic number, because the mean of its divisors is an integer number (2083127081463).

Almost surely, 2^{5555005550566} is an apocalyptic number.

5555005550566 is a deficient number, since it is larger than the sum of its proper divisors (2777502775286).

5555005550566 is a wasteful number, since it uses less digits than its factorization.

5555005550566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777502775285.

The product of its (nonzero) digits is 14062500, while the sum is 52.

The spelling of 5555005550566 in words is "five trillion, five hundred fifty-five billion, five million, five hundred fifty thousand, five hundred sixty-six".