66706670700737 has 8 divisors (see below), whose sum is σ = 66895952156040. Its totient is φ = 66517391001600.

The previous prime is 66706670700721. The next prime is 66706670700809. The reversal of 66706670700737 is 73700707660766.

66706670700737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 168080320576 + 66538590380161 = 409976^2 + 8157119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66706670700737 - 2⁴ = 66706670700721 is a prime.

It is a super-2 number, since 2×66706670700737² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66706670700737.

It is not an unprimeable number, because it can be changed into a prime (66706670709737) 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 7 ways as a sum of consecutive naturals, for example, 133396589 + ... + 133895717.

It is an arithmetic number, because the mean of its divisors is an integer number (8361994019505).

Almost surely, 2^{66706670700737} is an apocalyptic number.

It is an amenable number.

66706670700737 is a deficient number, since it is larger than the sum of its proper divisors (189281455303).

66706670700737 is a wasteful number, since it uses less digits than its factorization.

66706670700737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878083.

The product of its (nonzero) digits is 65345616, while the sum is 62.

The spelling of 66706670700737 in words is "sixty-six trillion, seven hundred six billion, six hundred seventy million, seven hundred thousand, seven hundred thirty-seven".