66707036733667 has 16 divisors (see below), whose sum is σ = 76602089790720. Its totient is φ = 57450505500000.

The previous prime is 66707036733661. The next prime is 66707036733683. The reversal of 66707036733667 is 76633763070766.

66707036733667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66707036733667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66707036733661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22094178 + ... + 24931240.

It is an arithmetic number, because the mean of its divisors is an integer number (4787630611920).

Almost surely, 2^{66707036733667} is an apocalyptic number.

66707036733667 is a deficient number, since it is larger than the sum of its proper divisors (9895053057053).

66707036733667 is a wasteful number, since it uses less digits than its factorization.

66707036733667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949594.

The product of its (nonzero) digits is 504094752, while the sum is 67.

The spelling of 66707036733667 in words is "sixty-six trillion, seven hundred seven billion, thirty-six million, seven hundred thirty-three thousand, six hundred sixty-seven".