66005500110993 has 8 divisors (see below), whose sum is σ = 97785926090400. Its totient is φ = 44003666740644.

The previous prime is 66005500110943. The next prime is 66005500111013. The reversal of 66005500110993 is 39901100550066.

66005500110993 is a `hidden beast` number, since 6 + 6 + 0 + 0 + 550 + 0 + 1 + 1 + 0 + 9 + 93 = 666.

It is not a de Polignac number, because 66005500110993 - 2⁹ = 66005500110481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66005500110943) 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, 1222324076103 + ... + 1222324076156.

It is an arithmetic number, because the mean of its divisors is an integer number (12223240761300).

Almost surely, 2^{66005500110993} is an apocalyptic number.

It is an amenable number.

66005500110993 is a deficient number, since it is larger than the sum of its proper divisors (31780425979407).

66005500110993 is a wasteful number, since it uses less digits than its factorization.

66005500110993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444648152268 (or 2444648152262 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The spelling of 66005500110993 in words is "sixty-six trillion, five billion, five hundred million, one hundred ten thousand, nine hundred ninety-three".