41663462557 has 2 divisors, whose sum is σ = 41663462558. Its totient is φ = 41663462556.

The previous prime is 41663462531. The next prime is 41663462579. The reversal of 41663462557 is 75526436614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23701834116 + 17961628441 = 153954^2 + 134021^2 .

It is a cyclic number.

It is not a de Polignac number, because 41663462557 - 2¹⁹ = 41662938269 is a prime.

It is a super-2 number, since 2×41663462557² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 41663462557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41663462527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20831731278 + 20831731279.

It is an arithmetic number, because the mean of its divisors is an integer number (20831731279).

Almost surely, 2^41663462557 is an apocalyptic number.

It is an amenable number.

41663462557 is a deficient number, since it is larger than the sum of its proper divisors (1).

41663462557 is an equidigital number, since it uses as much as digits as its factorization.

41663462557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 49.

The spelling of 41663462557 in words is "forty-one billion, six hundred sixty-three million, four hundred sixty-two thousand, five hundred fifty-seven".