216689337323333 has 16 divisors (see below), whose sum is σ = 251050234250880. Its totient is φ = 183180020818176.

The previous prime is 216689337323321. The next prime is 216689337323351. The reversal of 216689337323333 is 333323733986612.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 216689337323333 - 2⁶ = 216689337323269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216689337323383) 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, 901088 + ... + 20837241.

It is an arithmetic number, because the mean of its divisors is an integer number (15690639640680).

Almost surely, 2^{216689337323333} is an apocalyptic number.

It is an amenable number.

216689337323333 is a deficient number, since it is larger than the sum of its proper divisors (34360896927547).

216689337323333 is a wasteful number, since it uses less digits than its factorization.

216689337323333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21757916.

The product of its digits is 158723712, while the sum is 62.

The spelling of 216689337323333 in words is "two hundred sixteen trillion, six hundred eighty-nine billion, three hundred thirty-seven million, three hundred twenty-three thousand, three hundred thirty-three".