163606988160 has 1280 divisors, whose sum is σ = 771609991680. Its totient is φ = 31983206400.

The previous prime is 163606988119. The next prime is 163606988201. The reversal of 163606988160 is 61889606361.

163606988160 is a `hidden beast` number, since 16 + 3 + 606 + 9 + 8 + 8 + 16 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (163606988119) and next prime (163606988201).

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

It is a junction number, because it is equal to n+sod(n) for n = 163606988097 and 163606988106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 67857355 + ... + 67859765.

It is an arithmetic number, because the mean of its divisors is an integer number (602820306).

Almost surely, 2^163606988160 is an apocalyptic number.

163606988160 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 163606988160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385804995840).

163606988160 is an abundant number, since it is smaller than the sum of its proper divisors (608003003520).

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

163606988160 is a wasteful number, since it uses less digits than its factorization.

163606988160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 163606988160 in words is "one hundred sixty-three billion, six hundred six million, nine hundred eighty-eight thousand, one hundred sixty".