67411064065 has 4 divisors (see below), whose sum is σ = 80893276884. Its totient is φ = 53928851248.

The previous prime is 67411064051. The next prime is 67411064069. The reversal of 67411064065 is 56046011476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34542824449 + 32868239616 = 185857^2 + 181296^2 .

It is a cyclic number.

It is not a de Polignac number, because 67411064065 - 2²¹ = 67408966913 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67411064069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6741106402 + ... + 6741106411.

It is an arithmetic number, because the mean of its divisors is an integer number (20223319221).

Almost surely, 2^67411064065 is an apocalyptic number.

It is an amenable number.

67411064065 is a deficient number, since it is larger than the sum of its proper divisors (13482212819).

67411064065 is a wasteful number, since it uses less digits than its factorization.

67411064065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13482212818.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 67411064065 in words is "sixty-seven billion, four hundred eleven million, sixty-four thousand, sixty-five".