41644146717541 has 2 divisors, whose sum is σ = 41644146717542. Its totient is φ = 41644146717540.

The previous prime is 41644146717517. The next prime is 41644146717553. The reversal of 41644146717541 is 14571764144614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38292940520641 + 3351206196900 = 6188129^2 + 1830630^2 .

It is a cyclic number.

It is not a de Polignac number, because 41644146717541 - 2²¹ = 41644144620389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41644146717841) 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, 20822073358770 + 20822073358771.

It is an arithmetic number, because the mean of its divisors is an integer number (20822073358771).

Almost surely, 2^{41644146717541} is an apocalyptic number.

It is an amenable number.

41644146717541 is a deficient number, since it is larger than the sum of its proper divisors (1).

41644146717541 is an equidigital number, since it uses as much as digits as its factorization.

41644146717541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9031680, while the sum is 55.

The spelling of 41644146717541 in words is "forty-one trillion, six hundred forty-four billion, one hundred forty-six million, seven hundred seventeen thousand, five hundred forty-one".