40160065 has 16 divisors (see below), whose sum is σ = 53798976. Its totient is φ = 28526400.

The previous prime is 40160063. The next prime is 40160077. The reversal of 40160065 is 56006104.

It is not a de Polignac number, because 40160065 - 2¹ = 40160063 is a prime.

It is a super-2 number, since 2×40160065² = 3225661641608450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40160063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6126 + ... + 10855.

It is an arithmetic number, because the mean of its divisors is an integer number (3362436).

Almost surely, 2^40160065 is an apocalyptic number.

It is an amenable number.

40160065 is a deficient number, since it is larger than the sum of its proper divisors (13638911).

40160065 is a wasteful number, since it uses less digits than its factorization.

40160065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17040.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 40160065 is about 6337.1969355544. The cubic root of 40160065 is about 342.4507610321.

Adding to 40160065 its reverse (56006104), we get a palindrome (96166169).

The spelling of 40160065 in words is "forty million, one hundred sixty thousand, sixty-five".