1444423241161 has 2 divisors, whose sum is σ = 1444423241162. Its totient is φ = 1444423241160.

The previous prime is 1444423241143. The next prime is 1444423241249. The reversal of 1444423241161 is 1611423244441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1170873320761 + 273549920400 = 1082069^2 + 523020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444423241161 - 2²³ = 1444414852553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1444423241161.

It is not a weakly prime, because it can be changed into another prime (1444423241861) 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, 722211620580 + 722211620581.

It is an arithmetic number, because the mean of its divisors is an integer number (722211620581).

Almost surely, 2^{1444423241161} is an apocalyptic number.

It is an amenable number.

1444423241161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444423241161 is an equidigital number, since it uses as much as digits as its factorization.

1444423241161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 37.

The spelling of 1444423241161 in words is "one trillion, four hundred forty-four billion, four hundred twenty-three million, two hundred forty-one thousand, one hundred sixty-one".