66736734070667 has 8 divisors (see below), whose sum is σ = 70662715810272. Its totient is φ = 62810784720000.

The previous prime is 66736734070607. The next prime is 66736734070729. The reversal of 66736734070667 is 76607043763766.

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

It is a cyclic number.

It is not a de Polignac number, because 66736734070667 - 2⁶ = 66736734070603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66736734070597 and 66736734070606.

It is not an unprimeable number, because it can be changed into a prime (66736734070607) 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, 3789584 + ... + 12158717.

It is an arithmetic number, because the mean of its divisors is an integer number (8832839476284).

Almost surely, 2^{66736734070667} is an apocalyptic number.

66736734070667 is a deficient number, since it is larger than the sum of its proper divisors (3925981739605).

66736734070667 is a wasteful number, since it uses less digits than its factorization.

66736734070667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16194469.

The product of its (nonzero) digits is 672126336, while the sum is 68.

The spelling of 66736734070667 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred thirty-four million, seventy thousand, six hundred sixty-seven".