20144348183761 has 2 divisors, whose sum is σ = 20144348183762. Its totient is φ = 20144348183760.

The previous prime is 20144348183749. The next prime is 20144348183851. The reversal of 20144348183761 is 16738184344102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20109116893761 + 35231290000 = 4484319^2 + 187700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20144348183761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20144348183699 and 20144348183708.

It is not a weakly prime, because it can be changed into another prime (20144348183741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10072174091880 + 10072174091881.

It is an arithmetic number, because the mean of its divisors is an integer number (10072174091881).

Almost surely, 2^{20144348183761} is an apocalyptic number.

It is an amenable number.

20144348183761 is a deficient number, since it is larger than the sum of its proper divisors (1).

20144348183761 is an equidigital number, since it uses as much as digits as its factorization.

20144348183761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 20144348183761 in words is "twenty trillion, one hundred forty-four billion, three hundred forty-eight million, one hundred eighty-three thousand, seven hundred sixty-one".