66703734066700 has 72 divisors (see below), whose sum is σ = 145087770350880. Its totient is φ = 26618765606400.

The previous prime is 66703734066679. The next prime is 66703734066701. The reversal of 66703734066700 is 766043730766.

It is not an unprimeable number, because it can be changed into a prime (66703734066701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78434361 + ... + 79280239.

It is an arithmetic number, because the mean of its divisors is an integer number (2015107921540).

Almost surely, 2^{66703734066700} is an apocalyptic number.

It is an amenable number.

66703734066700 is an abundant number, since it is smaller than the sum of its proper divisors (78384036284180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66703734066700 is a wasteful number, since it uses less digits than its factorization.

66703734066700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847747 (or 847740 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 55.

The spelling of 66703734066700 in words is "sixty-six trillion, seven hundred three billion, seven hundred thirty-four million, sixty-six thousand, seven hundred".