20024735230561 has 2 divisors, whose sum is σ = 20024735230562. Its totient is φ = 20024735230560.

The previous prime is 20024735230543. The next prime is 20024735230649. The reversal of 20024735230561 is 16503253742002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18505139097600 + 1519596132961 = 4301760^2 + 1232719^2 .

It is a cyclic number.

It is not a de Polignac number, because 20024735230561 - 2⁵ = 20024735230529 is a prime.

It is not a weakly prime, because it can be changed into another prime (20024735230061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012367615280 + 10012367615281.

It is an arithmetic number, because the mean of its divisors is an integer number (10012367615281).

Almost surely, 2^{20024735230561} is an apocalyptic number.

It is an amenable number.

20024735230561 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024735230561 is an equidigital number, since it uses as much as digits as its factorization.

20024735230561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 40.

Adding to 20024735230561 its reverse (16503253742002), we get a palindrome (36527988972563).

The spelling of 20024735230561 in words is "twenty trillion, twenty-four billion, seven hundred thirty-five million, two hundred thirty thousand, five hundred sixty-one".