6622556219 has 2 divisors, whose sum is σ = 6622556220. Its totient is φ = 6622556218.

The previous prime is 6622556209. The next prime is 6622556231. The reversal of 6622556219 is 9126552266.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6622556219 is a prime.

It is a super-2 number, since 2×6622556219² = 87716501747631151922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6622556219.

It is not a weakly prime, because it can be changed into another prime (6622556209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311278109 + 3311278110.

It is an arithmetic number, because the mean of its divisors is an integer number (3311278110).

Almost surely, 2^6622556219 is an apocalyptic number.

6622556219 is a deficient number, since it is larger than the sum of its proper divisors (1).

6622556219 is an equidigital number, since it uses as much as digits as its factorization.

6622556219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The square root of 6622556219 is about 81379.0895685126. The cubic root of 6622556219 is about 1877.9119168921.

The spelling of 6622556219 in words is "six billion, six hundred twenty-two million, five hundred fifty-six thousand, two hundred nineteen".