66366306366412 has 12 divisors (see below), whose sum is σ = 125074961998336. Its totient is φ = 30630602938320.

The previous prime is 66366306366403. The next prime is 66366306366509. The reversal of 66366306366412 is 21466360366366.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638137561164 + ... + 638137561267.

Almost surely, 2^{66366306366412} is an apocalyptic number.

It is an amenable number.

66366306366412 is a deficient number, since it is larger than the sum of its proper divisors (58708655631924).

66366306366412 is a wasteful number, since it uses less digits than its factorization.

66366306366412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276275122448 (or 1276275122446 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 58.

The spelling of 66366306366412 in words is "sixty-six trillion, three hundred sixty-six billion, three hundred six million, three hundred sixty-six thousand, four hundred twelve".