66733707067 has 4 divisors (see below), whose sum is σ = 66734305720. Its totient is φ = 66733108416.

The previous prime is 66733707013. The next prime is 66733707101. The reversal of 66733707067 is 76070733766.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 76070733766 = 2 ⋅38035366883.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66733707067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66733704067) 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, 77142 + ... + 373387.

It is an arithmetic number, because the mean of its divisors is an integer number (16683576430).

Almost surely, 2^66733707067 is an apocalyptic number.

66733707067 is a deficient number, since it is larger than the sum of its proper divisors (598653).

66733707067 is a wasteful number, since it uses less digits than its factorization.

66733707067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598652.

The product of its (nonzero) digits is 4667544, while the sum is 52.

The spelling of 66733707067 in words is "sixty-six billion, seven hundred thirty-three million, seven hundred seven thousand, sixty-seven".