2104809033616 has 45 divisors (see below), whose sum is σ = 4167221016369. Its totient is φ = 1029879458112.

The previous prime is 2104809033529. The next prime is 2104809033619. The reversal of 2104809033616 is 6163309084012.

The square root of 2104809033616 is 1450796.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1032540499600 + 1072268534016 = 1016140^2 + 1035504^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2104809033619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 272745790 + ... + 272753506.

Almost surely, 2^{2104809033616} is an apocalyptic number.

2104809033616 is the 1450796-th square number.

It is an amenable number.

2104809033616 is a deficient number, since it is larger than the sum of its proper divisors (2062411982753).

2104809033616 is an frugal number, since it uses more digits than its factorization.

2104809033616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15536 (or 7766 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 2104809033616 in words is "two trillion, one hundred four billion, eight hundred nine million, thirty-three thousand, six hundred sixteen".