2043168961 has 2 divisors, whose sum is σ = 2043168962. Its totient is φ = 2043168960.

The previous prime is 2043168947. The next prime is 2043169001. The reversal of 2043168961 is 1698613402.

It is an a-pointer prime, because the next prime (2043169001) can be obtained adding 2043168961 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1566576400 + 476592561 = 39580^2 + 21831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043168961 is a prime.

It is not a weakly prime, because it can be changed into another prime (2043168901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021584480 + 1021584481.

It is an arithmetic number, because the mean of its divisors is an integer number (1021584481).

Almost surely, 2^2043168961 is an apocalyptic number.

It is an amenable number.

2043168961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043168961 is an equidigital number, since it uses as much as digits as its factorization.

2043168961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 2043168961 is about 45201.4265372234. The cubic root of 2043168961 is about 1268.9215141924.

The spelling of 2043168961 in words is "two billion, forty-three million, one hundred sixty-eight thousand, nine hundred sixty-one".