212543615336 has 128 divisors (see below), whose sum is σ = 485257651200. Its totient is φ = 86266736640.

The previous prime is 212543615299. The next prime is 212543615363. The reversal of 212543615336 is 633516345212.

It is a junction number, because it is equal to n+sod(n) for n = 212543615293 and 212543615302.

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, 1522571 + ... + 1656293.

It is an arithmetic number, because the mean of its divisors is an integer number (3791075400).

Almost surely, 2^212543615336 is an apocalyptic number.

212543615336 is a gapful number since it is divisible by the number (26) 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 212543615336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242628825600).

212543615336 is an abundant number, since it is smaller than the sum of its proper divisors (272714035864).

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

212543615336 is a wasteful number, since it uses less digits than its factorization.

212543615336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133819 (or 133815 counting only the distinct ones).

The product of its digits is 388800, while the sum is 41.

The spelling of 212543615336 in words is "two hundred twelve billion, five hundred forty-three million, six hundred fifteen thousand, three hundred thirty-six".