162442393578 has 96 divisors (see below), whose sum is σ = 374210928000. Its totient is φ = 50782491648.

The previous prime is 162442393573. The next prime is 162442393661. The reversal of 162442393578 is 875393244261.

162442393578 is a `hidden beast` number, since 1 + 6 + 2 + 44 + 23 + 9 + 3 + 578 = 666.

It is not an unprimeable number, because it can be changed into a prime (162442393571) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40537651 + ... + 40541657.

It is an arithmetic number, because the mean of its divisors is an integer number (3898030500).

Almost surely, 2^162442393578 is an apocalyptic number.

162442393578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 162442393578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187105464000).

162442393578 is an abundant number, since it is smaller than the sum of its proper divisors (211768534422).

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

162442393578 is a wasteful number, since it uses less digits than its factorization.

162442393578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196 (or 5193 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 162442393578 in words is "one hundred sixty-two billion, four hundred forty-two million, three hundred ninety-three thousand, five hundred seventy-eight".