66140317306 has 48 divisors (see below), whose sum is σ = 115863060960. Its totient is φ = 28234358880.

The previous prime is 66140317279. The next prime is 66140317307. The reversal of 66140317306 is 60371304166.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (66140317307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40851765 + ... + 40853383.

It is an arithmetic number, because the mean of its divisors is an integer number (2413813770).

Almost surely, 2^66140317306 is an apocalyptic number.

66140317306 is a deficient number, since it is larger than the sum of its proper divisors (49722743654).

66140317306 is a wasteful number, since it uses less digits than its factorization.

66140317306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019 (or 3012 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 66140317306 in words is "sixty-six billion, one hundred forty million, three hundred seventeen thousand, three hundred six".