20241436193581 has 2 divisors, whose sum is σ = 20241436193582. Its totient is φ = 20241436193580.

The previous prime is 20241436193533. The next prime is 20241436193597. The reversal of 20241436193581 is 18539163414202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19965338491081 + 276097702500 = 4468259^2 + 525450^2 .

It is a cyclic number.

It is not a de Polignac number, because 20241436193581 - 2⁷ = 20241436193453 is a prime.

It is a super-2 number, since 2×20241436193581² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20241436196581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10120718096790 + 10120718096791.

It is an arithmetic number, because the mean of its divisors is an integer number (10120718096791).

Almost surely, 2^{20241436193581} is an apocalyptic number.

It is an amenable number.

20241436193581 is a deficient number, since it is larger than the sum of its proper divisors (1).

20241436193581 is an equidigital number, since it uses as much as digits as its factorization.

20241436193581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 20241436193581 in words is "twenty trillion, two hundred forty-one billion, four hundred thirty-six million, one hundred ninety-three thousand, five hundred eighty-one".