66740000673 has 8 divisors (see below), whose sum is σ = 89276527648. Its totient is φ = 44348403744.

The previous prime is 66740000659. The next prime is 66740000683. The reversal of 66740000673 is 37600004766.

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

It is not a de Polignac number, because 66740000673 - 2⁸ = 66740000417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66740000623) 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, 36231436 + ... + 36233277.

It is an arithmetic number, because the mean of its divisors is an integer number (11159565956).

Almost surely, 2^66740000673 is an apocalyptic number.

It is an amenable number.

66740000673 is a deficient number, since it is larger than the sum of its proper divisors (22536526975).

66740000673 is a wasteful number, since it uses less digits than its factorization.

66740000673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72465023.

The product of its (nonzero) digits is 127008, while the sum is 39.

The spelling of 66740000673 in words is "sixty-six billion, seven hundred forty million, six hundred seventy-three", and thus it is an aban number.