66740074073 has 8 divisors (see below), whose sum is σ = 69674214528. Its totient is φ = 63808633504.

The previous prime is 66740074069. The next prime is 66740074081. The reversal of 66740074073 is 37047004766.

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 66740074073 - 2² = 66740074069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66740074043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624365 + ... + 723402.

It is an arithmetic number, because the mean of its divisors is an integer number (8709276816).

Almost surely, 2^66740074073 is an apocalyptic number.

It is an amenable number.

66740074073 is a deficient number, since it is larger than the sum of its proper divisors (2934140455).

66740074073 is a wasteful number, since it uses less digits than its factorization.

66740074073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349943.

The product of its (nonzero) digits is 592704, while the sum is 44.

The spelling of 66740074073 in words is "sixty-six billion, seven hundred forty million, seventy-four thousand, seventy-three".