216343343611 has 8 divisors (see below), whose sum is σ = 227734156800. Its totient is φ = 204952962600.

The previous prime is 216343343609. The next prime is 216343343617. The reversal of 216343343611 is 116343343612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216343343611 - 2¹ = 216343343609 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 1669410 + ... + 1794328.

It is an arithmetic number, because the mean of its divisors is an integer number (28466769600).

Almost surely, 2^216343343611 is an apocalyptic number.

216343343611 is a deficient number, since it is larger than the sum of its proper divisors (11390813189).

216343343611 is a wasteful number, since it uses less digits than its factorization.

216343343611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216089.

The product of its digits is 93312, while the sum is 37.

Subtracting from 216343343611 its reverse (116343343612), we obtain a palindrome (99999999999).

The spelling of 216343343611 in words is "two hundred sixteen billion, three hundred forty-three million, three hundred forty-three thousand, six hundred eleven".