212040043560 has 192 divisors, whose sum is σ = 721485273600. Its totient is φ = 53936236032.

The previous prime is 212040043559. The next prime is 212040043637. The reversal of 212040043560 is 65340040212.

212040043560 is a `hidden beast` number, since 2 + 1 + 20 + 40 + 0 + 43 + 560 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 744169 + ... + 988871.

It is an arithmetic number, because the mean of its divisors is an integer number (3757735800).

Almost surely, 2^212040043560 is an apocalyptic number.

212040043560 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 212040043560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360742636800).

212040043560 is an abundant number, since it is smaller than the sum of its proper divisors (509445230040).

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

212040043560 is a wasteful number, since it uses less digits than its factorization.

212040043560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244832 (or 244825 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 212040043560 its reverse (65340040212), we get a palindrome (277380083772).

The spelling of 212040043560 in words is "two hundred twelve billion, forty million, forty-three thousand, five hundred sixty".