216066562775 has 24 divisors (see below), whose sum is σ = 310509840384. Its totient is φ = 146073160800.

The previous prime is 216066562769. The next prime is 216066562807. The reversal of 216066562775 is 577265660612.

It is a happy number.

216066562775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216066562775 - 2¹⁸ = 216066300631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 8682407 + ... + 8707256.

It is an arithmetic number, because the mean of its divisors is an integer number (12937910016).

Almost surely, 2^216066562775 is an apocalyptic number.

216066562775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

216066562775 is a deficient number, since it is larger than the sum of its proper divisors (94443277609).

216066562775 is a wasteful number, since it uses less digits than its factorization.

216066562775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17389751 (or 17389746 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 216066562775 in words is "two hundred sixteen billion, sixty-six million, five hundred sixty-two thousand, seven hundred seventy-five".