5667447666 has 32 divisors (see below), whose sum is σ = 11547583488. Its totient is φ = 1854003600.

The previous prime is 5667447659. The next prime is 5667447677. The reversal of 5667447666 is 6667447665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37515 + ... + 112881.

It is an arithmetic number, because the mean of its divisors is an integer number (360861984).

Almost surely, 2^5667447666 is an apocalyptic number.

5667447666 is an abundant number, since it is smaller than the sum of its proper divisors (5880135822).

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

5667447666 is a wasteful number, since it uses less digits than its factorization.

5667447666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75606.

The product of its digits is 30481920, while the sum is 57.

The square root of 5667447666 is about 75282.4525769452. The cubic root of 5667447666 is about 1782.9089817542.

Subtracting 5667447666 from its reverse (6667447665), we obtain a palindrome (999999999).

The spelling of 5667447666 in words is "five billion, six hundred sixty-seven million, four hundred forty-seven thousand, six hundred sixty-six".