319808066 has 4 divisors (see below), whose sum is σ = 479712102. Its totient is φ = 159904032.

The previous prime is 319808053. The next prime is 319808081. The reversal of 319808066 is 660808913.

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., 242456041 + 77352025 = 15571^2 + 8795^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79952015 + ... + 79952018.

Almost surely, 2^319808066 is an apocalyptic number.

319808066 is a deficient number, since it is larger than the sum of its proper divisors (159904036).

319808066 is a wasteful number, since it uses less digits than its factorization.

319808066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159904035.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 319808066 is about 17883.1782969359. The cubic root of 319808066 is about 683.8536002694.

The spelling of 319808066 in words is "three hundred nineteen million, eight hundred eight thousand, sixty-six".