20144503425757 has 2 divisors, whose sum is σ = 20144503425758. Its totient is φ = 20144503425756.

The previous prime is 20144503425751. The next prime is 20144503425763. The reversal of 20144503425757 is 75752430544102.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20144503425751) and next prime (20144503425763).

It can be written as a sum of positive squares in only one way, i.e., 15638813704836 + 4505689720921 = 3954594^2 + 2122661^2 .

It is a cyclic number.

It is not a de Polignac number, because 20144503425757 - 2¹⁹ = 20144502901469 is a prime.

It is a super-2 number, since 2×20144503425757² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20144503425757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20144503425751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10072251712878 + 10072251712879.

It is an arithmetic number, because the mean of its divisors is an integer number (10072251712879).

Almost surely, 2^{20144503425757} is an apocalyptic number.

It is an amenable number.

20144503425757 is a deficient number, since it is larger than the sum of its proper divisors (1).

20144503425757 is an equidigital number, since it uses as much as digits as its factorization.

20144503425757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704000, while the sum is 49.

Adding to 20144503425757 its reverse (75752430544102), we get a palindrome (95896933969859).

The spelling of 20144503425757 in words is "twenty trillion, one hundred forty-four billion, five hundred three million, four hundred twenty-five thousand, seven hundred fifty-seven".