20411012555177 has 2 divisors, whose sum is σ = 20411012555178. Its totient is φ = 20411012555176.

The previous prime is 20411012555093. The next prime is 20411012555191. The reversal of 20411012555177 is 77155521011402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20377604392336 + 33408162841 = 4514156^2 + 182779^2 .

It is a cyclic number.

It is not a de Polignac number, because 20411012555177 - 2¹² = 20411012551081 is a prime.

It is a super-3 number, since 3×20411012555177³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20411012555377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205506277588 + 10205506277589.

It is an arithmetic number, because the mean of its divisors is an integer number (10205506277589).

Almost surely, 2^{20411012555177} is an apocalyptic number.

It is an amenable number.

20411012555177 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411012555177 is an equidigital number, since it uses as much as digits as its factorization.

20411012555177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98000, while the sum is 41.

Adding to 20411012555177 its reverse (77155521011402), we get a palindrome (97566533566579).

The spelling of 20411012555177 in words is "twenty trillion, four hundred eleven billion, twelve million, five hundred fifty-five thousand, one hundred seventy-seven".