66700706 has 8 divisors (see below), whose sum is σ = 100268544. Its totient is φ = 33277860.

The previous prime is 66700693. The next prime is 66700717. The reversal of 66700706 is 60700766.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35090 + ... + 36941.

It is an arithmetic number, because the mean of its divisors is an integer number (12533568).

Almost surely, 2^66700706 is an apocalyptic number.

66700706 is a deficient number, since it is larger than the sum of its proper divisors (33567838).

66700706 is a wasteful number, since it uses less digits than its factorization.

66700706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72496.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 66700706 is about 8167.0500182134. The cubic root of 66700706 is about 405.5491326631.

The spelling of 66700706 in words is "sixty-six million, seven hundred thousand, seven hundred six".