320161150221 has 16 divisors (see below), whose sum is σ = 465707258688. Its totient is φ = 194029430400.

The previous prime is 320161150219. The next prime is 320161150237. The reversal of 320161150221 is 122051161023.

It is a happy number.

It is not a de Polignac number, because 320161150221 - 2¹ = 320161150219 is a prime.

It is a super-2 number, since 2×320161150221² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320161150191 and 320161150200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320161150721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727041 + ... + 1081161.

It is an arithmetic number, because the mean of its divisors is an integer number (29106703668).

Almost surely, 2^320161150221 is an apocalyptic number.

It is an amenable number.

320161150221 is a deficient number, since it is larger than the sum of its proper divisors (145546108467).

320161150221 is a wasteful number, since it uses less digits than its factorization.

320161150221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381532.

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 320161150221 in words is "three hundred twenty billion, one hundred sixty-one million, one hundred fifty thousand, two hundred twenty-one".