16678885435 has 4 divisors (see below), whose sum is σ = 20014662528. Its totient is φ = 13343108344.

The previous prime is 16678885429. The next prime is 16678885471. The reversal of 16678885435 is 53458887661.

16678885435 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, and also an emirpimes, since its reverse is a distinct semiprime: 53458887661 = 1153 ⋅46365037.

It is a cyclic number.

It is not a de Polignac number, because 16678885435 - 2³³ = 8088950843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1667888539 + ... + 1667888548.

It is an arithmetic number, because the mean of its divisors is an integer number (5003665632).

Almost surely, 2^16678885435 is an apocalyptic number.

16678885435 is a deficient number, since it is larger than the sum of its proper divisors (3335777093).

16678885435 is an equidigital number, since it uses as much as digits as its factorization.

16678885435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335777092.

The product of its digits is 38707200, while the sum is 61.

The spelling of 16678885435 in words is "sixteen billion, six hundred seventy-eight million, eight hundred eighty-five thousand, four hundred thirty-five".