243993574621160 has 128 divisors (see below), whose sum is σ = 683266363718400. Its totient is φ = 76352304568320.

The previous prime is 243993574621157. The next prime is 243993574621183. The reversal of 243993574621160 is 61126475399342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243993574621093 and 243993574621102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376255826 + ... + 376903745.

It is an arithmetic number, because the mean of its divisors is an integer number (5338018466550).

Almost surely, 2^{243993574621160} is an apocalyptic number.

243993574621160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243993574621160 is an abundant number, since it is smaller than the sum of its proper divisors (439272789097240).

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

243993574621160 is a wasteful number, since it uses less digits than its factorization.

243993574621160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753159691 (or 753159687 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 62.

The spelling of 243993574621160 in words is "two hundred forty-three trillion, nine hundred ninety-three billion, five hundred seventy-four million, six hundred twenty-one thousand, one hundred sixty".