66363629212 has 24 divisors (see below), whose sum is σ = 116375172480. Its totient is φ = 33113625600.

The previous prime is 66363629197. The next prime is 66363629263. The reversal of 66363629212 is 21292636366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9917964 + ... + 9924652.

It is an arithmetic number, because the mean of its divisors is an integer number (4848965520).

Almost surely, 2^66363629212 is an apocalyptic number.

It is an amenable number.

66363629212 is a deficient number, since it is larger than the sum of its proper divisors (50011543268).

66363629212 is a wasteful number, since it uses less digits than its factorization.

66363629212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11421 (or 11419 counting only the distinct ones).

The product of its digits is 839808, while the sum is 46.

The spelling of 66363629212 in words is "sixty-six billion, three hundred sixty-three million, six hundred twenty-nine thousand, two hundred twelve".