4000000065 has 8 divisors (see below), whose sum is σ = 6400000128. Its totient is φ = 2133333360.

The previous prime is 4000000063. The next prime is 4000000133. The reversal of 4000000065 is 5600000004.

4000000065 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4000000065 - 2¹ = 4000000063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 266666671 = 4000000065 / (4 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 6 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 3999999990 and 4000000053.

It is not an unprimeable number, because it can be changed into a prime (4000000063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133333321 + ... + 133333350.

It is an arithmetic number, because the mean of its divisors is an integer number (800000016).

Almost surely, 2^4000000065 is an apocalyptic number.

It is an amenable number.

4000000065 is a deficient number, since it is larger than the sum of its proper divisors (2400000063).

4000000065 is a wasteful number, since it uses less digits than its factorization.

4000000065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266666679.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 4000000065 is about 63245.5537172377. The cubic root of 4000000065 is about 1587.4010605666.

Adding to 4000000065 its reverse (5600000004), we get a palindrome (9600000069).

The spelling of 4000000065 in words is "four billion, sixty-five", and thus it is an aban number.