6566665422 has 8 divisors (see below), whose sum is σ = 13133330856. Its totient is φ = 2188888472.

The previous prime is 6566665421. The next prime is 6566665423. The reversal of 6566665422 is 2245666656.

It is an interprime number because it is at equal distance from previous prime (6566665421) and next prime (6566665423).

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

6566665422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6566665421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547222113 + ... + 547222124.

It is an arithmetic number, because the mean of its divisors is an integer number (1641666357).

Almost surely, 2^6566665422 is an apocalyptic number.

6566665422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6566665422 is a wasteful number, since it uses less digits than its factorization.

6566665422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094444242.

The product of its digits is 3110400, while the sum is 48.

The square root of 6566665422 is about 81034.9641944760. The cubic root of 6566665422 is about 1872.6141312951.

The spelling of 6566665422 in words is "six billion, five hundred sixty-six million, six hundred sixty-five thousand, four hundred twenty-two".