41659574581 has 2 divisors, whose sum is σ = 41659574582. Its totient is φ = 41659574580.

The previous prime is 41659574557. The next prime is 41659574597. The reversal of 41659574581 is 18547595614.

41659574581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40557932100 + 1101642481 = 201390^2 + 33191^2 .

It is a cyclic number.

It is not a de Polignac number, because 41659574581 - 2¹¹ = 41659572533 is a prime.

It is a super-2 number, since 2×41659574581² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41659574681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20829787290 + 20829787291.

It is an arithmetic number, because the mean of its divisors is an integer number (20829787291).

Almost surely, 2^41659574581 is an apocalyptic number.

It is an amenable number.

41659574581 is a deficient number, since it is larger than the sum of its proper divisors (1).

41659574581 is an equidigital number, since it uses as much as digits as its factorization.

41659574581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048000, while the sum is 55.

The spelling of 41659574581 in words is "forty-one billion, six hundred fifty-nine million, five hundred seventy-four thousand, five hundred eighty-one".