66736703373704 has 512 divisors, whose sum is σ = 167409994752000. Its totient is φ = 24236491603968.

The previous prime is 66736703373701. The next prime is 66736703373709. The reversal of 66736703373704 is 40737330763766.

It is a happy number.

66736703373704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66736703373701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5516791784 + ... + 5516803880.

It is an arithmetic number, because the mean of its divisors is an integer number (326972646000).

Almost surely, 2^{66736703373704} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66736703373704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83704997376000).

66736703373704 is an abundant number, since it is smaller than the sum of its proper divisors (100673291378296).

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

66736703373704 is a wasteful number, since it uses less digits than its factorization.

66736703373704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12357 (or 12353 counting only the distinct ones).

The product of its (nonzero) digits is 168031584, while the sum is 62.

The spelling of 66736703373704 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred three million, three hundred seventy-three thousand, seven hundred four".