66068206071 has 64 divisors (see below), whose sum is σ = 107578368000. Its totient is φ = 35206742016.

The previous prime is 66068206063. The next prime is 66068206103. The reversal of 66068206071 is 17060286066.

It is a happy number.

It is not a de Polignac number, because 66068206071 - 2³ = 66068206063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66068207071) 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 63 ways as a sum of consecutive naturals, for example, 25478151 + ... + 25480743.

It is an arithmetic number, because the mean of its divisors is an integer number (1680912000).

Almost surely, 2^66068206071 is an apocalyptic number.

66068206071 is a deficient number, since it is larger than the sum of its proper divisors (41510161929).

66068206071 is a wasteful number, since it uses less digits than its factorization.

66068206071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 66068206071 in words is "sixty-six billion, sixty-eight million, two hundred six thousand, seventy-one".