66700703397 has 8 divisors (see below), whose sum is σ = 88958698144. Its totient is φ = 44454922128.

The previous prime is 66700703393. The next prime is 66700703477. The reversal of 66700703397 is 79330700766.

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

It is not a de Polignac number, because 66700703397 - 2² = 66700703393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66700703393) 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, 3040618 + ... + 3062475.

It is an arithmetic number, because the mean of its divisors is an integer number (11119837268).

Almost surely, 2^66700703397 is an apocalyptic number.

It is an amenable number.

66700703397 is a deficient number, since it is larger than the sum of its proper divisors (22257994747).

66700703397 is a wasteful number, since it uses less digits than its factorization.

66700703397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106739.

The product of its (nonzero) digits is 1000188, while the sum is 48.

The spelling of 66700703397 in words is "sixty-six billion, seven hundred million, seven hundred three thousand, three hundred ninety-seven".