162821067328 has 56 divisors (see below), whose sum is σ = 330315185952. Its totient is φ = 79609795584.

The previous prime is 162821067293. The next prime is 162821067329. The reversal of 162821067328 is 823760128261.

162821067328 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (162821067329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448875 + ... + 726037.

Almost surely, 2^162821067328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162821067328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165157592976).

162821067328 is an abundant number, since it is smaller than the sum of its proper divisors (167494118624).

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

162821067328 is a wasteful number, since it uses less digits than its factorization.

162821067328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277379 (or 277369 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 162821067328 in words is "one hundred sixty-two billion, eight hundred twenty-one million, sixty-seven thousand, three hundred twenty-eight".