6221478167 has 2 divisors, whose sum is σ = 6221478168. Its totient is φ = 6221478166.

The previous prime is 6221478143. The next prime is 6221478169. The reversal of 6221478167 is 7618741226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6221478167 - 2²⁶ = 6154369303 is a prime.

Together with 6221478169, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6221478169) 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, 3110739083 + 3110739084.

It is an arithmetic number, because the mean of its divisors is an integer number (3110739084).

Almost surely, 2^6221478167 is an apocalyptic number.

6221478167 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221478167 is an equidigital number, since it uses as much as digits as its factorization.

6221478167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 44.

The square root of 6221478167 is about 78876.3473228825. The cubic root of 6221478167 is about 1839.2094673337.

The spelling of 6221478167 in words is "six billion, two hundred twenty-one million, four hundred seventy-eight thousand, one hundred sixty-seven".