670606066 has 8 divisors (see below), whose sum is σ = 1083286764. Its totient is φ = 309510480.

The previous prime is 670606051. The next prime is 670606081. The reversal of 670606066 is 660606076.

It is an interprime number because it is at equal distance from previous prime (670606051) and next prime (670606081).

It can be written as a sum of positive squares in 2 ways, for example, as 626050441 + 44555625 = 25021^2 + 6675^2 .

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

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, 12896245 + ... + 12896296.

Almost surely, 2^670606066 is an apocalyptic number.

670606066 is a deficient number, since it is larger than the sum of its proper divisors (412680698).

670606066 is a wasteful number, since it uses less digits than its factorization.

670606066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25792556.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 670606066 is about 25896.0627509280. The cubic root of 670606066 is about 875.2977777244.

The spelling of 670606066 in words is "six hundred seventy million, six hundred six thousand, sixty-six".