41656474488481 has 2 divisors, whose sum is σ = 41656474488482. Its totient is φ = 41656474488480.

The previous prime is 41656474488479. The next prime is 41656474488493. The reversal of 41656474488481 is 18488447465614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37425702699025 + 4230771789456 = 6117655^2 + 2056884^2 .

It is a cyclic number.

It is not a de Polignac number, because 41656474488481 - 2¹ = 41656474488479 is a prime.

It is a super-2 number, since 2×41656474488481² (a number of 28 digits) contains 22 as substring.

Together with 41656474488479, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 41656474488481.

It is not a weakly prime, because it can be changed into another prime (41656474488401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20828237244240 + 20828237244241.

It is an arithmetic number, because the mean of its divisors is an integer number (20828237244241).

Almost surely, 2^{41656474488481} is an apocalyptic number.

It is an amenable number.

41656474488481 is a deficient number, since it is larger than the sum of its proper divisors (1).

41656474488481 is an equidigital number, since it uses as much as digits as its factorization.

41656474488481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 660602880, while the sum is 70.

The spelling of 41656474488481 in words is "forty-one trillion, six hundred fifty-six billion, four hundred seventy-four million, four hundred eighty-eight thousand, four hundred eighty-one".