162178311888 has 160 divisors (see below), whose sum is σ = 480950328320. Its totient is φ = 52269649920.

The previous prime is 162178311887. The next prime is 162178311923. The reversal of 162178311888 is 888113871261.

162178311888 is a `hidden beast` number, since 1 + 621 + 7 + 8 + 3 + 1 + 1 + 8 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162178311887) 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, 17364756 + ... + 17374092.

It is an arithmetic number, because the mean of its divisors is an integer number (3005939552).

Almost surely, 2^162178311888 is an apocalyptic number.

162178311888 is a gapful number since it is divisible by the number (18) 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 162178311888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240475164160).

162178311888 is an abundant number, since it is smaller than the sum of its proper divisors (318772016432).

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

162178311888 is a wasteful number, since it uses less digits than its factorization.

162178311888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10682 (or 10670 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 54.

The spelling of 162178311888 in words is "one hundred sixty-two billion, one hundred seventy-eight million, three hundred eleven thousand, eight hundred eighty-eight".