41705865561 has 8 divisors (see below), whose sum is σ = 55615671360. Its totient is φ = 27799985072.

The previous prime is 41705865541. The next prime is 41705865563. The reversal of 41705865561 is 16556850714.

41705865561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41705865561 - 2¹⁰ = 41705864537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41705865561.

It is not an unprimeable number, because it can be changed into a prime (41705865563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956445 + ... + 999098.

It is an arithmetic number, because the mean of its divisors is an integer number (6951958920).

Almost surely, 2^41705865561 is an apocalyptic number.

It is an amenable number.

41705865561 is a deficient number, since it is larger than the sum of its proper divisors (13909805799).

41705865561 is a wasteful number, since it uses less digits than its factorization.

41705865561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962655.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 41705865561 in words is "forty-one billion, seven hundred five million, eight hundred sixty-five thousand, five hundred sixty-one".