66755474461713 has 4 divisors (see below), whose sum is σ = 89007299282288. Its totient is φ = 44503649641140.

The previous prime is 66755474461699. The next prime is 66755474461771. The reversal of 66755474461713 is 31716447455766.

66755474461713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 66755474461713 - 2⁹ = 66755474461201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66755474461213) 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 3 ways as a sum of consecutive naturals, for example, 11125912410283 + ... + 11125912410288.

It is an arithmetic number, because the mean of its divisors is an integer number (22251824820572).

Almost surely, 2^{66755474461713} is an apocalyptic number.

It is an amenable number.

66755474461713 is a deficient number, since it is larger than the sum of its proper divisors (22251824820575).

66755474461713 is a wasteful number, since it uses less digits than its factorization.

66755474461713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22251824820574.

The product of its digits is 355622400, while the sum is 66.

The spelling of 66755474461713 in words is "sixty-six trillion, seven hundred fifty-five billion, four hundred seventy-four million, four hundred sixty-one thousand, seven hundred thirteen".