216340202043612 has 72 divisors (see below), whose sum is σ = 575644105509200. Its totient is φ = 68317715547648.

The previous prime is 216340202043577. The next prime is 216340202043613.

216340202043612 is a `hidden beast` number, since 2 + 1 + 6 + 3 + 4 + 0 + 202 + 0 + 436 + 12 = 666.

216340202043612 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216340202043613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377602548 + ... + 378175044.

Almost surely, 2^{216340202043612} is an apocalyptic number.

It is an amenable number.

216340202043612 is an abundant number, since it is smaller than the sum of its proper divisors (359303903465588).

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

216340202043612 is a wasteful number, since it uses less digits than its factorization.

216340202043612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124995 (or 1124990 counting only the distinct ones).

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

It can be divided in two parts, 21634020 and 2043612, that added together give a palindrome (23677632).

The spelling of 216340202043612 in words is "two hundred sixteen trillion, three hundred forty billion, two hundred two million, forty-three thousand, six hundred twelve".