216033105551 has 2 divisors, whose sum is σ = 216033105552. Its totient is φ = 216033105550.

The previous prime is 216033105479. The next prime is 216033105559. The reversal of 216033105551 is 155501330612.

216033105551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216033105551 - 2²² = 216028911247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216033105559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108016552775 + 108016552776.

It is an arithmetic number, because the mean of its divisors is an integer number (108016552776).

Almost surely, 2^216033105551 is an apocalyptic number.

216033105551 is a deficient number, since it is larger than the sum of its proper divisors (1).

216033105551 is an equidigital number, since it uses as much as digits as its factorization.

216033105551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 216033105551 in words is "two hundred sixteen billion, thirty-three million, one hundred five thousand, five hundred fifty-one".