16366435461243 has 12 divisors (see below), whose sum is σ = 27017607745648. Its totient is φ = 9352248834960.

The previous prime is 16366435461227. The next prime is 16366435461307. The reversal of 16366435461243 is 34216453466361.

16366435461243 is a `hidden beast` number, since 1 + 6 + 3 + 6 + 6 + 43 + 546 + 12 + 43 = 666.

It is not a de Polignac number, because 16366435461243 - 2⁴ = 16366435461227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16366435461243.

It is not an unprimeable number, because it can be changed into a prime (16366435461203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129892344868 + ... + 129892344993.

Almost surely, 2^{16366435461243} is an apocalyptic number.

16366435461243 is a deficient number, since it is larger than the sum of its proper divisors (10651172284405).

16366435461243 is a wasteful number, since it uses less digits than its factorization.

16366435461243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259784689874 (or 259784689871 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 54.

The spelling of 16366435461243 in words is "sixteen trillion, three hundred sixty-six billion, four hundred thirty-five million, four hundred sixty-one thousand, two hundred forty-three".