320666982 has 8 divisors (see below), whose sum is σ = 641333976. Its totient is φ = 106888992.

The previous prime is 320666977. The next prime is 320666987. The reversal of 320666982 is 289666023.

It is an interprime number because it is at equal distance from previous prime (320666977) and next prime (320666987).

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

320666982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320666987) 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 in 3 ways as a sum of consecutive naturals, for example, 26722243 + ... + 26722254.

It is an arithmetic number, because the mean of its divisors is an integer number (80166747).

Almost surely, 2^320666982 is an apocalyptic number.

320666982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320666982 is a wasteful number, since it uses less digits than its factorization.

320666982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53444502.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 320666982 is about 17907.1768294167. The cubic root of 320666982 is about 684.4652668742.

The spelling of 320666982 in words is "three hundred twenty million, six hundred sixty-six thousand, nine hundred eighty-two".