66670708003747 has 4 divisors (see below), whose sum is σ = 66673518884080. Its totient is φ = 66667897123416.

The previous prime is 66670708003733. The next prime is 66670708003777. The reversal of 66670708003747 is 74730080707666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66670708003747 - 2¹¹ = 66670708001699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66670708003777) 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, 1405404588 + ... + 1405452025.

It is an arithmetic number, because the mean of its divisors is an integer number (16668379721020).

Almost surely, 2^{66670708003747} is an apocalyptic number.

66670708003747 is a deficient number, since it is larger than the sum of its proper divisors (2810880333).

66670708003747 is a wasteful number, since it uses less digits than its factorization.

66670708003747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810880332.

The product of its (nonzero) digits is 49787136, while the sum is 61.

The spelling of 66670708003747 in words is "sixty-six trillion, six hundred seventy billion, seven hundred eight million, three thousand, seven hundred forty-seven".