216853333355 has 4 divisors (see below), whose sum is σ = 260224000032. Its totient is φ = 173482666680.

The previous prime is 216853333339. The next prime is 216853333381. The reversal of 216853333355 is 553333358612.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 216853333355 - 2⁴ = 216853333339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21685333331 + ... + 21685333340.

It is an arithmetic number, because the mean of its divisors is an integer number (65056000008).

Almost surely, 2^216853333355 is an apocalyptic number.

216853333355 is a deficient number, since it is larger than the sum of its proper divisors (43370666677).

216853333355 is an equidigital number, since it uses as much as digits as its factorization.

216853333355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43370666676.

The product of its digits is 2916000, while the sum is 47.

The spelling of 216853333355 in words is "two hundred sixteen billion, eight hundred fifty-three million, three hundred thirty-three thousand, three hundred fifty-five".