16405105303 has 4 divisors (see below), whose sum is σ = 16406491320. Its totient is φ = 16403719288.

The previous prime is 16405105289. The next prime is 16405105313. The reversal of 16405105303 is 30350150461.

16405105303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16405105303 - 2¹⁷ = 16404974231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16405105313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675100 + ... + 698977.

It is an arithmetic number, because the mean of its divisors is an integer number (4101622830).

Almost surely, 2^16405105303 is an apocalyptic number.

16405105303 is a deficient number, since it is larger than the sum of its proper divisors (1386017).

16405105303 is a wasteful number, since it uses less digits than its factorization.

16405105303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386016.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 16405105303 its reverse (30350150461), we get a palindrome (46755255764).

The spelling of 16405105303 in words is "sixteen billion, four hundred five million, one hundred five thousand, three hundred three".