2108159999 has 16 divisors (see below), whose sum is σ = 2333331360. Its totient is φ = 1888719360.

The previous prime is 2108159981. The next prime is 2108160007. The reversal of 2108159999 is 9999518012.

It is not a de Polignac number, because 2108159999 - 2²⁰ = 2107111423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2108159999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108159099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306947 + ... + 313739.

It is an arithmetic number, because the mean of its divisors is an integer number (145833210).

Almost surely, 2^2108159999 is an apocalyptic number.

2108159999 is a deficient number, since it is larger than the sum of its proper divisors (225171361).

2108159999 is a wasteful number, since it uses less digits than its factorization.

2108159999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7210.

The product of its (nonzero) digits is 524880, while the sum is 53.

The square root of 2108159999 is about 45914.7035164118. The cubic root of 2108159999 is about 1282.2356759759.

The spelling of 2108159999 in words is "two billion, one hundred eight million, one hundred fifty-nine thousand, nine hundred ninety-nine".