66700707407 has 8 divisors (see below), whose sum is σ = 66800574384. Its totient is φ = 66600914688.

The previous prime is 66700707383. The next prime is 66700707419. The reversal of 66700707407 is 70470700766.

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 66700707407 - 2¹⁸ = 66700445263 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 (66700707497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1929023 + ... + 1963295.

It is an arithmetic number, because the mean of its divisors is an integer number (8350071798).

Almost surely, 2^66700707407 is an apocalyptic number.

66700707407 is a deficient number, since it is larger than the sum of its proper divisors (99866977).

66700707407 is a wasteful number, since it uses less digits than its factorization.

66700707407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37129.

The product of its (nonzero) digits is 345744, while the sum is 44.

The spelling of 66700707407 in words is "sixty-six billion, seven hundred million, seven hundred seven thousand, four hundred seven".