2108385855 has 48 divisors (see below), whose sum is σ = 3812949504. Its totient is φ = 1117631520.

The previous prime is 2108385833. The next prime is 2108385859. The reversal of 2108385855 is 5585838012.

2108385855 is a `hidden beast` number, since 210 + 8 + 385 + 8 + 55 = 666.

It is not a de Polignac number, because 2108385855 - 2⁵ = 2108385823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2108385855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108385859) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197710 + ... + 208100.

It is an arithmetic number, because the mean of its divisors is an integer number (79436448).

Almost surely, 2^2108385855 is an apocalyptic number.

2108385855 is a deficient number, since it is larger than the sum of its proper divisors (1704563649).

2108385855 is a wasteful number, since it uses less digits than its factorization.

2108385855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10578 (or 10566 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The square root of 2108385855 is about 45917.1629676747. The cubic root of 2108385855 is about 1282.2814647648.

The spelling of 2108385855 in words is "two billion, one hundred eight million, three hundred eighty-five thousand, eight hundred fifty-five".