41664321563 has 16 divisors (see below), whose sum is σ = 43771779072. Its totient is φ = 39609000000.

The previous prime is 41664321553. The next prime is 41664321571. The reversal of 41664321563 is 36512346614.

It is a cyclic number.

It is not a de Polignac number, because 41664321563 - 2⁶ = 41664321499 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41664321563.

It is not an unprimeable number, because it can be changed into a prime (41664321553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531338 + ... + 604688.

It is an arithmetic number, because the mean of its divisors is an integer number (2735736192).

Almost surely, 2^41664321563 is an apocalyptic number.

41664321563 is a deficient number, since it is larger than the sum of its proper divisors (2107457509).

41664321563 is a wasteful number, since it uses less digits than its factorization.

41664321563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73706.

The product of its digits is 311040, while the sum is 41.

The spelling of 41664321563 in words is "forty-one billion, six hundred sixty-four million, three hundred twenty-one thousand, five hundred sixty-three".