40016065 has 8 divisors (see below), whose sum is σ = 48058560. Its totient is φ = 31986672.

The previous prime is 40016051. The next prime is 40016077. The reversal of 40016065 is 56061004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40016065 - 2¹⁷ = 39884993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5676 + ... + 10594.

It is an arithmetic number, because the mean of its divisors is an integer number (6007320).

Almost surely, 2^40016065 is an apocalyptic number.

It is an amenable number.

40016065 is a deficient number, since it is larger than the sum of its proper divisors (8042495).

40016065 is a wasteful number, since it uses less digits than its factorization.

40016065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551.

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

The square root of 40016065 is about 6325.8252426067. The cubic root of 40016065 is about 342.0409678133.

Adding to 40016065 its reverse (56061004), we get a palindrome (96077069).

The spelling of 40016065 in words is "forty million, sixteen thousand, sixty-five".