162388816140 has 96 divisors (see below), whose sum is σ = 462920371200. Its totient is φ = 42522105600.

The previous prime is 162388816129. The next prime is 162388816141. The reversal of 162388816140 is 41618883261.

It is a self number, because there is not a number n which added to its sum of digits gives 162388816140.

It is not an unprimeable number, because it can be changed into a prime (162388816141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2155305 + ... + 2229375.

It is an arithmetic number, because the mean of its divisors is an integer number (4822087200).

Almost surely, 2^162388816140 is an apocalyptic number.

162388816140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162388816140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231460185600).

162388816140 is an abundant number, since it is smaller than the sum of its proper divisors (300531555060).

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

162388816140 is a wasteful number, since it uses less digits than its factorization.

162388816140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74743 (or 74741 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 162388816140 in words is "one hundred sixty-two billion, three hundred eighty-eight million, eight hundred sixteen thousand, one hundred forty".