6328856161 has 2 divisors, whose sum is σ = 6328856162. Its totient is φ = 6328856160.

The previous prime is 6328856159. The next prime is 6328856197. The reversal of 6328856161 is 1616588236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4494361600 + 1834494561 = 67040^2 + 42831^2 .

It is a cyclic number.

It is not a de Polignac number, because 6328856161 - 2¹ = 6328856159 is a prime.

Together with 6328856159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6328856141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3164428080 + 3164428081.

It is an arithmetic number, because the mean of its divisors is an integer number (3164428081).

Almost surely, 2^6328856161 is an apocalyptic number.

It is an amenable number.

6328856161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6328856161 is an equidigital number, since it uses as much as digits as its factorization.

6328856161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The square root of 6328856161 is about 79554.1083854253. The cubic root of 6328856161 is about 1849.7302904597.

The spelling of 6328856161 in words is "six billion, three hundred twenty-eight million, eight hundred fifty-six thousand, one hundred sixty-one".