20344546002401 has 2 divisors, whose sum is σ = 20344546002402. Its totient is φ = 20344546002400.

The previous prime is 20344546002331. The next prime is 20344546002427. The reversal of 20344546002401 is 10420064544302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17813455918801 + 2531090083600 = 4220599^2 + 1590940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20344546002401 is a prime.

It is not a weakly prime, because it can be changed into another prime (20344546002101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172273001200 + 10172273001201.

It is an arithmetic number, because the mean of its divisors is an integer number (10172273001201).

Almost surely, 2^{20344546002401} is an apocalyptic number.

It is an amenable number.

20344546002401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344546002401 is an equidigital number, since it uses as much as digits as its factorization.

20344546002401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 20344546002401 in words is "twenty trillion, three hundred forty-four billion, five hundred forty-six million, two thousand, four hundred one".