320445650386 has 32 divisors (see below), whose sum is σ = 505104501888. Its totient is φ = 152177076480.

The previous prime is 320445650383. The next prime is 320445650387. The reversal of 320445650386 is 683056544023.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (320445650381) 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 15 ways as a sum of consecutive naturals, for example, 11201481 + ... + 11230051.

It is an arithmetic number, because the mean of its divisors is an integer number (15784515684).

Almost surely, 2^320445650386 is an apocalyptic number.

320445650386 is a deficient number, since it is larger than the sum of its proper divisors (184658851502).

320445650386 is a wasteful number, since it uses less digits than its factorization.

320445650386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30306.

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 320445650386 in words is "three hundred twenty billion, four hundred forty-five million, six hundred fifty thousand, three hundred eighty-six".