66706070 has 8 divisors (see below), whose sum is σ = 120070944. Its totient is φ = 26682424.

The previous prime is 66706069. The next prime is 66706091. The reversal of 66706070 is 7060766.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3335294 + ... + 3335313.

It is an arithmetic number, because the mean of its divisors is an integer number (15008868).

Almost surely, 2^66706070 is an apocalyptic number.

66706070 is a deficient number, since it is larger than the sum of its proper divisors (53364874).

66706070 is a wasteful number, since it uses less digits than its factorization.

66706070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6670614.

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

The square root of 66706070 is about 8167.3784043596. The cubic root of 66706070 is about 405.5600036487.

It can be divided in two parts, 6 and 6706070, that added together give a palindrome (6706076).

The spelling of 66706070 in words is "sixty-six million, seven hundred six thousand, seventy".