16855198854 has 32 divisors (see below), whose sum is σ = 36309769440. Its totient is φ = 5185320192.

The previous prime is 16855198823. The next prime is 16855198903. The reversal of 16855198854 is 45889155861.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 544752 + ... + 574860.

It is an arithmetic number, because the mean of its divisors is an integer number (1134680295).

Almost surely, 2^16855198854 is an apocalyptic number.

16855198854 is an abundant number, since it is smaller than the sum of its proper divisors (19454570586).

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

16855198854 is a wasteful number, since it uses less digits than its factorization.

16855198854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37304.

The product of its digits is 13824000, while the sum is 60.

The spelling of 16855198854 in words is "sixteen billion, eight hundred fifty-five million, one hundred ninety-eight thousand, eight hundred fifty-four".