40041365161 has 16 divisors (see below), whose sum is σ = 46147763200. Its totient is φ = 34032484368.

The previous prime is 40041365159. The next prime is 40041365173. The reversal of 40041365161 is 16156314004.

It is a cyclic number.

It is not a de Polignac number, because 40041365161 - 2¹ = 40041365159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40041365461) 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 in 15 ways as a sum of consecutive naturals, for example, 460930 + ... + 540868.

It is an arithmetic number, because the mean of its divisors is an integer number (2884235200).

Almost surely, 2^40041365161 is an apocalyptic number.

It is an amenable number.

40041365161 is a deficient number, since it is larger than the sum of its proper divisors (6106398039).

40041365161 is a wasteful number, since it uses less digits than its factorization.

40041365161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80548.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 40041365161 its reverse (16156314004), we get a palindrome (56197679165).

The spelling of 40041365161 in words is "forty billion, forty-one million, three hundred sixty-five thousand, one hundred sixty-one".