20344650605441 has 2 divisors, whose sum is σ = 20344650605442. Its totient is φ = 20344650605440.

The previous prime is 20344650605423. The next prime is 20344650605467. The reversal of 20344650605441 is 14450605644302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15747571559041 + 4597079046400 = 3968321^2 + 2144080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20344650605441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20344650605392 and 20344650605401.

It is not a weakly prime, because it can be changed into another prime (20344650605401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172325302720 + 10172325302721.

It is an arithmetic number, because the mean of its divisors is an integer number (10172325302721).

Almost surely, 2^{20344650605441} is an apocalyptic number.

It is an amenable number.

20344650605441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344650605441 is an equidigital number, since it uses as much as digits as its factorization.

20344650605441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382400, while the sum is 44.

It can be divided in two parts, 203 and 44650605441, that added together give a palindrome (44650605644).

The spelling of 20344650605441 in words is "twenty trillion, three hundred forty-four billion, six hundred fifty million, six hundred five thousand, four hundred forty-one".