6887885161 has 2 divisors, whose sum is σ = 6887885162. Its totient is φ = 6887885160.

The previous prime is 6887885093. The next prime is 6887885231. The reversal of 6887885161 is 1615887886.

It is a happy number.

6887885161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6188811561 + 699073600 = 78669^2 + 26440^2 .

It is a cyclic number.

It is not a de Polignac number, because 6887885161 - 2⁹ = 6887884649 is a prime.

It is a super-2 number, since 2×6887885161² = 94885923982247991842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6887885096 and 6887885105.

It is not a weakly prime, because it can be changed into another prime (6887885261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3443942580 + 3443942581.

It is an arithmetic number, because the mean of its divisors is an integer number (3443942581).

Almost surely, 2^6887885161 is an apocalyptic number.

It is an amenable number.

6887885161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6887885161 is an equidigital number, since it uses as much as digits as its factorization.

6887885161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5160960, while the sum is 58.

The square root of 6887885161 is about 82993.2838306811. The cubic root of 6887885161 is about 1902.6634079205.

The spelling of 6887885161 in words is "six billion, eight hundred eighty-seven million, eight hundred eighty-five thousand, one hundred sixty-one".