66071014666 has 16 divisors (see below), whose sum is σ = 99396144000. Its totient is φ = 32939016768.

The previous prime is 66071014579. The next prime is 66071014693. The reversal of 66071014666 is 66641017066.

It is an unprimeable number.

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, 3228735 + ... + 3249133.

It is an arithmetic number, because the mean of its divisors is an integer number (6212259000).

Almost surely, 2^66071014666 is an apocalyptic number.

66071014666 is a deficient number, since it is larger than the sum of its proper divisors (33325129334).

66071014666 is a wasteful number, since it uses less digits than its factorization.

66071014666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25053.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 66071014666 in words is "sixty-six billion, seventy-one million, fourteen thousand, six hundred sixty-six".