66606100651105 has 16 divisors (see below), whose sum is σ = 84134873617920. Its totient is φ = 50479902079488.

The previous prime is 66606100651091. The next prime is 66606100651127. The reversal of 66606100651105 is 50115600160666.

66606100651105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-66606100651105 is a prime.

It is an unprimeable number.

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, 6019504 + ... + 13017166.

It is an arithmetic number, because the mean of its divisors is an integer number (5258429601120).

Almost surely, 2^{66606100651105} is an apocalyptic number.

It is an amenable number.

66606100651105 is a deficient number, since it is larger than the sum of its proper divisors (17528772966815).

66606100651105 is a wasteful number, since it uses less digits than its factorization.

66606100651105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097880.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 66606100651105 in words is "sixty-six trillion, six hundred six billion, one hundred million, six hundred fifty-one thousand, one hundred five".