243385974160 has 160 divisors (see below), whose sum is σ = 656880456960. Its totient is φ = 82136457216.

The previous prime is 243385974151. The next prime is 243385974173. The reversal of 243385974160 is 61479583342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243385974098 and 243385974107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89183676 + ... + 89186404.

It is an arithmetic number, because the mean of its divisors is an integer number (4105502856).

It is a 1-persistent number, because it is pandigital, but 2⋅243385974160 = 486771948320 is not.

Almost surely, 2^243385974160 is an apocalyptic number.

243385974160 is a gapful number since it is divisible by the number (20) 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 243385974160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328440228480).

243385974160 is an abundant number, since it is smaller than the sum of its proper divisors (413494482800).

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

243385974160 is a wasteful number, since it uses less digits than its factorization.

243385974160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5193 (or 5187 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 243385974160 in words is "two hundred forty-three billion, three hundred eighty-five million, nine hundred seventy-four thousand, one hundred sixty".