100546334561 has 2 divisors, whose sum is σ = 100546334562. Its totient is φ = 100546334560.

The previous prime is 100546334533. The next prime is 100546334597. The reversal of 100546334561 is 165433645001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50613750625 + 49932583936 = 224975^2 + 223456^2 .

It is an emirp because it is prime and its reverse (165433645001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100546334561 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (100546334261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50273167280 + 50273167281.

It is an arithmetic number, because the mean of its divisors is an integer number (50273167281).

Almost surely, 2^100546334561 is an apocalyptic number.

It is an amenable number.

100546334561 is a deficient number, since it is larger than the sum of its proper divisors (1).

100546334561 is an equidigital number, since it uses as much as digits as its factorization.

100546334561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 100546334561 its reverse (165433645001), we get a palindrome (265979979562).

The spelling of 100546334561 in words is "one hundred billion, five hundred forty-six million, three hundred thirty-four thousand, five hundred sixty-one".