162311438856 has 128 divisors (see below), whose sum is σ = 474153120000. Its totient is φ = 46282392576.

The previous prime is 162311438803. The next prime is 162311438857. The reversal of 162311438856 is 658834113261.

It is not an unprimeable number, because it can be changed into a prime (162311438857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4170720 + ... + 4209456.

It is an arithmetic number, because the mean of its divisors is an integer number (3704321250).

Almost surely, 2^162311438856 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 162311438856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237076560000).

162311438856 is an abundant number, since it is smaller than the sum of its proper divisors (311841681144).

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

162311438856 is a wasteful number, since it uses less digits than its factorization.

162311438856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39276 (or 39258 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The spelling of 162311438856 in words is "one hundred sixty-two billion, three hundred eleven million, four hundred thirty-eight thousand, eight hundred fifty-six".