216347743612 has 96 divisors (see below), whose sum is σ = 535096558080. Its totient is φ = 73712229120.

The previous prime is 216347743597. The next prime is 216347743613.

It is a happy number.

216347743612 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216347743613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1345843 + ... + 1497994.

It is an arithmetic number, because the mean of its divisors is an integer number (5573922480).

Almost surely, 2^216347743612 is an apocalyptic number.

216347743612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216347743612 is an abundant number, since it is smaller than the sum of its proper divisors (318748814468).

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

216347743612 is a wasteful number, since it uses less digits than its factorization.

216347743612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843891 (or 2843889 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 46.

It can be divided in two parts, 216347 and 743612, that added together give a palindrome (959959).

The spelling of 216347743612 in words is "two hundred sixteen billion, three hundred forty-seven million, seven hundred forty-three thousand, six hundred twelve".