5655651666 has 32 divisors (see below), whose sum is σ = 12937449600. Its totient is φ = 1614619776.

The previous prime is 5655651607. The next prime is 5655651671. The reversal of 5655651666 is 6661565565.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910 + ... + 106358.

It is an arithmetic number, because the mean of its divisors is an integer number (404295300).

Almost surely, 2^5655651666 is an apocalyptic number.

5655651666 is an abundant number, since it is smaller than the sum of its proper divisors (7281797934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5655651666 is a wasteful number, since it uses less digits than its factorization.

5655651666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106738.

The product of its digits is 4860000, while the sum is 51.

The square root of 5655651666 is about 75204.0668182247. The cubic root of 5655651666 is about 1781.6711639775.

The spelling of 5655651666 in words is "five billion, six hundred fifty-five million, six hundred fifty-one thousand, six hundred sixty-six".