2099647680 has 224 divisors, whose sum is σ = 7269260544. Its totient is φ = 510357504.

The previous prime is 2099647663. The next prime is 2099647703. The reversal of 2099647680 is 867469902.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1034827 + ... + 1036853.

It is an arithmetic number, because the mean of its divisors is an integer number (32452056).

Almost surely, 2^2099647680 is an apocalyptic number.

2099647680 is a gapful number since it is divisible by the number (20) 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 2099647680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3634630272).

2099647680 is an abundant number, since it is smaller than the sum of its proper divisors (5169612864).

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

2099647680 is a wasteful number, since it uses less digits than its factorization.

2099647680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143 (or 2133 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 2099647680 is about 45821.9126619568. The cubic root of 2099647680 is about 1280.5075461168.

The spelling of 2099647680 in words is "two billion, ninety-nine million, six hundred forty-seven thousand, six hundred eighty".