320220620361016 has 8 divisors (see below), whose sum is σ = 600413663176920. Its totient is φ = 160110310180504.

The previous prime is 320220620361013. The next prime is 320220620361043. The reversal of 320220620361016 is 610163026022023.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320220620361013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20013788772556 + ... + 20013788772571.

It is an arithmetic number, because the mean of its divisors is an integer number (75051707897115).

Almost surely, 2^{320220620361016} is an apocalyptic number.

It is an amenable number.

320220620361016 is a deficient number, since it is larger than the sum of its proper divisors (280193042815904).

320220620361016 is a wasteful number, since it uses less digits than its factorization.

320220620361016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40027577545133 (or 40027577545129 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 320220620361016 its reverse (610163026022023), we get a palindrome (930383646383039).

The spelling of 320220620361016 in words is "three hundred twenty trillion, two hundred twenty billion, six hundred twenty million, three hundred sixty-one thousand, sixteen".