66755113773005 has 16 divisors (see below), whose sum is σ = 91550113035264. Its totient is φ = 45774813799680.

The previous prime is 66755113772993. The next prime is 66755113773011. The reversal of 66755113773005 is 50037731155766.

It is not a de Polignac number, because 66755113773005 - 2¹⁰ = 66755113771981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12044900 + ... + 16691010.

It is an arithmetic number, because the mean of its divisors is an integer number (5721882064704).

Almost surely, 2^{66755113773005} is an apocalyptic number.

It is an amenable number.

66755113773005 is a deficient number, since it is larger than the sum of its proper divisors (24794999262259).

66755113773005 is a wasteful number, since it uses less digits than its factorization.

66755113773005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056636.

The product of its (nonzero) digits is 13891500, while the sum is 56.

The spelling of 66755113773005 in words is "sixty-six trillion, seven hundred fifty-five billion, one hundred thirteen million, seven hundred seventy-three thousand, five".