20363025563641 has 2 divisors, whose sum is σ = 20363025563642. Its totient is φ = 20363025563640.

The previous prime is 20363025563609. The next prime is 20363025563681. The reversal of 20363025563641 is 14636552036302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11127534953616 + 9235490610025 = 3335796^2 + 3038995^2 .

It is a cyclic number.

It is not a de Polignac number, because 20363025563641 - 2⁵ = 20363025563609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20363025563591 and 20363025563600.

It is not a weakly prime, because it can be changed into another prime (20363025563681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10181512781820 + 10181512781821.

It is an arithmetic number, because the mean of its divisors is an integer number (10181512781821).

Almost surely, 2^{20363025563641} is an apocalyptic number.

It is an amenable number.

20363025563641 is a deficient number, since it is larger than the sum of its proper divisors (1).

20363025563641 is an equidigital number, since it uses as much as digits as its factorization.

20363025563641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 46.

Adding to 20363025563641 its reverse (14636552036302), we get a palindrome (34999577599943).

The spelling of 20363025563641 in words is "twenty trillion, three hundred sixty-three billion, twenty-five million, five hundred sixty-three thousand, six hundred forty-one".