316666066 has 4 divisors (see below), whose sum is σ = 474999102. Its totient is φ = 158333032.

The previous prime is 316666033. The next prime is 316666069. The reversal of 316666066 is 660666613.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 243204025 + 73462041 = 15595^2 + 8571^2 .

It is not an unprimeable number, because it can be changed into a prime (316666069) by changing a digit.

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 as a sum of consecutive naturals, namely, 79166515 + ... + 79166518.

Almost surely, 2^316666066 is an apocalyptic number.

316666066 is a deficient number, since it is larger than the sum of its proper divisors (158333036).

316666066 is a wasteful number, since it uses less digits than its factorization.

316666066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158333035.

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 316666066 is about 17795.1135427679. The cubic root of 316666066 is about 681.6066866427.

The spelling of 316666066 in words is "three hundred sixteen million, six hundred sixty-six thousand, sixty-six".