16885534859 has 24 divisors (see below), whose sum is σ = 18441380160. Its totient is φ = 15416472096.

The previous prime is 16885534843. The next prime is 16885534871. The reversal of 16885534859 is 95843558861.

It is not a de Polignac number, because 16885534859 - 2⁴ = 16885534843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16885534889) 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 23 ways as a sum of consecutive naturals, for example, 2780144 + ... + 2786210.

It is an arithmetic number, because the mean of its divisors is an integer number (768390840).

Almost surely, 2^16885534859 is an apocalyptic number.

16885534859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16885534859 is a deficient number, since it is larger than the sum of its proper divisors (1555845301).

16885534859 is a wasteful number, since it uses less digits than its factorization.

16885534859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6267 (or 6230 counting only the distinct ones).

The product of its digits is 41472000, while the sum is 62.

The spelling of 16885534859 in words is "sixteen billion, eight hundred eighty-five million, five hundred thirty-four thousand, eight hundred fifty-nine".