6422565166 has 4 divisors (see below), whose sum is σ = 9633847752. Its totient is φ = 3211282582.

The previous prime is 6422565157. The next prime is 6422565169. The reversal of 6422565166 is 6615652246.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6422565169) by changing a digit.

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 as a sum of consecutive naturals, namely, 1605641290 + ... + 1605641293.

It is an arithmetic number, because the mean of its divisors is an integer number (2408461938).

Almost surely, 2^6422565166 is an apocalyptic number.

6422565166 is a deficient number, since it is larger than the sum of its proper divisors (3211282586).

6422565166 is a wasteful number, since it uses less digits than its factorization.

6422565166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211282585.

The product of its digits is 518400, while the sum is 43.

The square root of 6422565166 is about 80140.9081930071. The cubic root of 6422565166 is about 1858.8150202679.

The spelling of 6422565166 in words is "six billion, four hundred twenty-two million, five hundred sixty-five thousand, one hundred sixty-six".