104443785161 has 2 divisors, whose sum is σ = 104443785162. Its totient is φ = 104443785160.

The previous prime is 104443785079. The next prime is 104443785179. The reversal of 104443785161 is 161587344401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103490890000 + 952895161 = 321700^2 + 30869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104443785161 is a prime.

It is not a weakly prime, because it can be changed into another prime (104443788161) 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, 52221892580 + 52221892581.

It is an arithmetic number, because the mean of its divisors is an integer number (52221892581).

Almost surely, 2^104443785161 is an apocalyptic number.

It is an amenable number.

104443785161 is a deficient number, since it is larger than the sum of its proper divisors (1).

104443785161 is an equidigital number, since it uses as much as digits as its factorization.

104443785161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 104443785161 in words is "one hundred four billion, four hundred forty-three million, seven hundred eighty-five thousand, one hundred sixty-one".