16805463243 has 8 divisors (see below), whose sum is σ = 22424512656. Its totient is φ = 11195028000.

The previous prime is 16805463221. The next prime is 16805463253. The reversal of 16805463243 is 34236450861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16805463243 - 2¹² = 16805459147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16805463195 and 16805463204.

It is not an unprimeable number, because it can be changed into a prime (16805463253) 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 in 7 ways as a sum of consecutive naturals, for example, 2148988 + ... + 2156793.

It is an arithmetic number, because the mean of its divisors is an integer number (2803064082).

Almost surely, 2^16805463243 is an apocalyptic number.

16805463243 is a deficient number, since it is larger than the sum of its proper divisors (5619049413).

16805463243 is a wasteful number, since it uses less digits than its factorization.

16805463243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307085.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 16805463243 in words is "sixteen billion, eight hundred five million, four hundred sixty-three thousand, two hundred forty-three".