2175800265641 has 2 divisors, whose sum is σ = 2175800265642. Its totient is φ = 2175800265640.

The previous prime is 2175800265637. The next prime is 2175800265659. The reversal of 2175800265641 is 1465620085712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1392258403600 + 783541862041 = 1179940^2 + 885179^2 .

It is a cyclic number.

It is not a de Polignac number, because 2175800265641 - 2² = 2175800265637 is a prime.

It is not a weakly prime, because it can be changed into another prime (2175800265671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087900132820 + 1087900132821.

It is an arithmetic number, because the mean of its divisors is an integer number (1087900132821).

Almost surely, 2^{2175800265641} is an apocalyptic number.

It is an amenable number.

2175800265641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175800265641 is an equidigital number, since it uses as much as digits as its factorization.

2175800265641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 2175800265641 in words is "two trillion, one hundred seventy-five billion, eight hundred million, two hundred sixty-five thousand, six hundred forty-one".