41394336565 has 16 divisors (see below), whose sum is σ = 50895457200. Its totient is φ = 32300974080.

The previous prime is 41394336559. The next prime is 41394336629. The reversal of 41394336565 is 56563349314.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3959052241 + 37435284324 = 62921^2 + 193482^2 .

It is not a de Polignac number, because 41394336565 - 2³¹ = 39246852917 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1098517 + ... + 1135573.

It is an arithmetic number, because the mean of its divisors is an integer number (3180966075).

Almost surely, 2^41394336565 is an apocalyptic number.

It is an amenable number.

41394336565 is a deficient number, since it is larger than the sum of its proper divisors (9501120635).

41394336565 is a wasteful number, since it uses less digits than its factorization.

41394336565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42552.

The product of its digits is 3499200, while the sum is 49.

The spelling of 41394336565 in words is "forty-one billion, three hundred ninety-four million, three hundred thirty-six thousand, five hundred sixty-five".