212160336444 has 72 divisors (see below), whose sum is σ = 613805512320. Its totient is φ = 60528438432.

The previous prime is 212160336403. The next prime is 212160336497. The reversal of 212160336444 is 444633061212.

212160336444 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 6 + 0 + 3 + 3 + 644 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 212160336399 and 212160336408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 444214 + ... + 788445.

It is an arithmetic number, because the mean of its divisors is an integer number (8525076560).

Almost surely, 2^212160336444 is an apocalyptic number.

It is an amenable number.

212160336444 is an abundant number, since it is smaller than the sum of its proper divisors (401645175876).

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

212160336444 is a wasteful number, since it uses less digits than its factorization.

212160336444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233359 (or 1233354 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 212160336444 its reverse (444633061212), we get a palindrome (656793397656).

The spelling of 212160336444 in words is "two hundred twelve billion, one hundred sixty million, three hundred thirty-six thousand, four hundred forty-four".