20541184133641 has 2 divisors, whose sum is σ = 20541184133642. Its totient is φ = 20541184133640.

The previous prime is 20541184133597. The next prime is 20541184133669. The reversal of 20541184133641 is 14633148114502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11513833385616 + 9027350748025 = 3393204^2 + 3004555^2 .

It is a cyclic number.

It is not a de Polignac number, because 20541184133641 - 2⁷ = 20541184133513 is a prime.

It is a super-2 number, since 2×20541184133641² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20541184133741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270592066820 + 10270592066821.

It is an arithmetic number, because the mean of its divisors is an integer number (10270592066821).

Almost surely, 2^{20541184133641} is an apocalyptic number.

It is an amenable number.

20541184133641 is a deficient number, since it is larger than the sum of its proper divisors (1).

20541184133641 is an equidigital number, since it uses as much as digits as its factorization.

20541184133641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 20541184133641 in words is "twenty trillion, five hundred forty-one billion, one hundred eighty-four million, one hundred thirty-three thousand, six hundred forty-one".