5655443666 has 8 divisors (see below), whose sum is σ = 8493475584. Its totient is φ = 2824285140.

The previous prime is 5655443657. The next prime is 5655443687. The reversal of 5655443666 is 6663445565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1716290 + ... + 1719581.

It is an arithmetic number, because the mean of its divisors is an integer number (1061684448).

Almost surely, 2^5655443666 is an apocalyptic number.

5655443666 is a deficient number, since it is larger than the sum of its proper divisors (2838031918).

5655443666 is a wasteful number, since it uses less digits than its factorization.

5655443666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436696.

The product of its digits is 7776000, while the sum is 50.

The square root of 5655443666 is about 75202.6839015736. The cubic root of 5655443666 is about 1781.6493219826.

The spelling of 5655443666 in words is "five billion, six hundred fifty-five million, four hundred forty-three thousand, six hundred sixty-six".