5556547666 has 16 divisors (see below), whose sum is σ = 8636025600. Its totient is φ = 2679649648.

The previous prime is 5556547627. The next prime is 5556547669. The reversal of 5556547666 is 6667456555.

It is not an unprimeable number, because it can be changed into a prime (5556547669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437986 + ... + 450493.

It is an arithmetic number, because the mean of its divisors is an integer number (539751600).

Almost surely, 2^5556547666 is an apocalyptic number.

5556547666 is a deficient number, since it is larger than the sum of its proper divisors (3079477934).

5556547666 is a wasteful number, since it uses less digits than its factorization.

5556547666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888593.

The product of its digits is 22680000, while the sum is 55.

The square root of 5556547666 is about 74542.2542320797. The cubic root of 5556547666 is about 1771.2030364958.

The spelling of 5556547666 in words is "five billion, five hundred fifty-six million, five hundred forty-seven thousand, six hundred sixty-six".