216341818268 has 24 divisors (see below), whose sum is σ = 390453245952. Its totient is φ = 104823364464.

The previous prime is 216341818243. The next prime is 216341818333. The reversal of 216341818268 is 862818143612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4930130 + ... + 4973817.

It is an arithmetic number, because the mean of its divisors is an integer number (16268885248).

Almost surely, 2^216341818268 is an apocalyptic number.

It is an amenable number.

216341818268 is a deficient number, since it is larger than the sum of its proper divisors (174111427684).

216341818268 is a wasteful number, since it uses less digits than its factorization.

216341818268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9904121 (or 9904119 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The spelling of 216341818268 in words is "two hundred sixteen billion, three hundred forty-one million, eight hundred eighteen thousand, two hundred sixty-eight".