66073126216 has 32 divisors (see below), whose sum is σ = 127412784000. Its totient is φ = 32098873536.

The previous prime is 66073126213. The next prime is 66073126243. The reversal of 66073126216 is 61262137066.

It is not an unprimeable number, because it can be changed into a prime (66073126213) by changing a digit.

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, 57595 + ... + 368053.

It is an arithmetic number, because the mean of its divisors is an integer number (3981649500).

Almost surely, 2^66073126216 is an apocalyptic number.

It is an amenable number.

66073126216 is a deficient number, since it is larger than the sum of its proper divisors (61339657784).

66073126216 is a wasteful number, since it uses less digits than its factorization.

66073126216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311221 (or 311217 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 66073126216 in words is "sixty-six billion, seventy-three million, one hundred twenty-six thousand, two hundred sixteen".