2101656163 has 2 divisors, whose sum is σ = 2101656164. Its totient is φ = 2101656162.

The previous prime is 2101656131. The next prime is 2101656173. The reversal of 2101656163 is 3616561012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101656163 - 2⁵ = 2101656131 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (2101656103) 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, 1050828081 + 1050828082.

It is an arithmetic number, because the mean of its divisors is an integer number (1050828082).

Almost surely, 2^2101656163 is an apocalyptic number.

2101656163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101656163 is an equidigital number, since it uses as much as digits as its factorization.

2101656163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2101656163 is about 45843.8236079845. The cubic root of 2101656163 is about 1280.9157190416.

The spelling of 2101656163 in words is "two billion, one hundred one million, six hundred fifty-six thousand, one hundred sixty-three".