66670000039993 has 16 divisors (see below), whose sum is σ = 76240209982464. Its totient is φ = 57111273156240.

The previous prime is 66670000039969. The next prime is 66670000040047. The reversal of 66670000039993 is 39993000007666.

66670000039993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66670000039993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66670000031993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557423628 + ... + 557543218.

It is an arithmetic number, because the mean of its divisors is an integer number (4765013123904).

Almost surely, 2^{66670000039993} is an apocalyptic number.

It is an amenable number.

66670000039993 is a deficient number, since it is larger than the sum of its proper divisors (9570209942471).

66670000039993 is a wasteful number, since it uses less digits than its factorization.

66670000039993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166932.

The product of its (nonzero) digits is 9920232, while the sum is 58.

The spelling of 66670000039993 in words is "sixty-six trillion, six hundred seventy billion, thirty-nine thousand, nine hundred ninety-three".