67065716 has 6 divisors (see below), whose sum is σ = 117365010. Its totient is φ = 33532856.

The previous prime is 67065701. The next prime is 67065737. The reversal of 67065716 is 61756076.

It can be written as a sum of positive squares in only one way, i.e., 63840100 + 3225616 = 7990^2 + 1796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67065716.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8383211 + ... + 8383218.

It is an arithmetic number, because the mean of its divisors is an integer number (19560835).

Almost surely, 2^67065716 is an apocalyptic number.

It is an amenable number.

67065716 is a deficient number, since it is larger than the sum of its proper divisors (50299294).

67065716 is a wasteful number, since it uses less digits than its factorization.

67065716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16766433 (or 16766431 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 67065716 is about 8189.3660316291. The cubic root of 67065716 is about 406.2875570485.

The spelling of 67065716 in words is "sixty-seven million, sixty-five thousand, seven hundred sixteen".