66031367212 has 12 divisors (see below), whose sum is σ = 115573212216. Its totient is φ = 33010449440.

The previous prime is 66031367179. The next prime is 66031367219. The reversal of 66031367212 is 21276313066.

It is not an unprimeable number, because it can be changed into a prime (66031367219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280089 + ... + 1330672.

It is an arithmetic number, because the mean of its divisors is an integer number (9631101018).

Almost surely, 2^66031367212 is an apocalyptic number.

It is an amenable number.

66031367212 is a deficient number, since it is larger than the sum of its proper divisors (49541845004).

66031367212 is a wasteful number, since it uses less digits than its factorization.

66031367212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617088 (or 2617086 counting only the distinct ones).

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

The spelling of 66031367212 in words is "sixty-six billion, thirty-one million, three hundred sixty-seven thousand, two hundred twelve".