2099559168 has 324 divisors, whose sum is σ = 7265316240. Its totient is φ = 570544128.

The previous prime is 2099559167. The next prime is 2099559173. The reversal of 2099559168 is 8619559902.

2099559168 is a `hidden beast` number, since 20 + 9 + 9 + 559 + 1 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (2099559167) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 31336671 + ... + 31336737.

Almost surely, 2^2099559168 is an apocalyptic number.

2099559168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2099559168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3632658120).

2099559168 is an abundant number, since it is smaller than the sum of its proper divisors (5165757072).

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

2099559168 is an equidigital number, since it uses as much as digits as its factorization.

2099559168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 54.

The square root of 2099559168 is about 45820.9468256604. The cubic root of 2099559168 is about 1280.4895523239.

The spelling of 2099559168 in words is "two billion, ninety-nine million, five hundred fifty-nine thousand, one hundred sixty-eight".