216343343612 has 48 divisors (see below), whose sum is σ = 438940464480. Its totient is φ = 92209152000.

The previous prime is 216343343609. The next prime is 216343343617.

216343343612 is nontrivially palindromic in base 10.

It is a super-4 number, since 4×216343343612⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216343343617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336389 + ... + 738812.

It is an arithmetic number, because the mean of its divisors is an integer number (9144593010).

Almost surely, 2^216343343612 is an apocalyptic number.

216343343612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216343343612 is an abundant number, since it is smaller than the sum of its proper divisors (222597120868).

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

216343343612 is a wasteful number, since it uses less digits than its factorization.

216343343612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075502 (or 1075500 counting only the distinct ones).

The product of its digits is 186624, while the sum is 38.

It can be divided in two parts, 216343 and 343612, that added together give a palindrome (559955).

The spelling of 216343343612 in words is "two hundred sixteen billion, three hundred forty-three million, three hundred forty-three thousand, six hundred twelve".