40241211165 has 12 divisors (see below), whose sum is σ = 69751432764. Its totient is φ = 21461979264.

The previous prime is 40241211163. The next prime is 40241211181. The reversal of 40241211165 is 56111214204.

40241211165 is a `hidden beast` number, since 402 + 41 + 211 + 1 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25111473156 + 15129738009 = 158466^2 + 123003^2 .

It is not a de Polignac number, because 40241211165 - 2¹ = 40241211163 is a prime.

It is a super-2 number, since 2×40241211165² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40241211163) 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 11 ways as a sum of consecutive naturals, for example, 447124524 + ... + 447124613.

It is an arithmetic number, because the mean of its divisors is an integer number (5812619397).

Almost surely, 2^40241211165 is an apocalyptic number.

40241211165 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40241211165 is a deficient number, since it is larger than the sum of its proper divisors (29510221599).

40241211165 is a wasteful number, since it uses less digits than its factorization.

40241211165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894249148 (or 894249145 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 40241211165 its reverse (56111214204), we get a palindrome (96352425369).

The spelling of 40241211165 in words is "forty billion, two hundred forty-one million, two hundred eleven thousand, one hundred sixty-five".