16853355558 has 40 divisors (see below), whose sum is σ = 40668928608. Its totient is φ = 5185647216.

The previous prime is 16853355529. The next prime is 16853355559. The reversal of 16853355558 is 85555335861.

16853355558 is a `hidden beast` number, since 1 + 6 + 8 + 5 + 33 + 55 + 558 = 666.

16853355558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×16853355558³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16853355559) 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 19 ways as a sum of consecutive naturals, for example, 3999166 + ... + 4003377.

Almost surely, 2^16853355558 is an apocalyptic number.

16853355558 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16853355558 is an abundant number, since it is smaller than the sum of its proper divisors (23815573050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16853355558 is a wasteful number, since it uses less digits than its factorization.

16853355558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8002570 (or 8002561 counting only the distinct ones).

The product of its digits is 10800000, while the sum is 54.

The spelling of 16853355558 in words is "sixteen billion, eight hundred fifty-three million, three hundred fifty-five thousand, five hundred fifty-eight".