2105603216 has 20 divisors (see below), whose sum is σ = 4179110124. Its totient is φ = 1027123200.

The previous prime is 2105603197. The next prime is 2105603267. The reversal of 2105603216 is 6123065012.

It can be written as a sum of positive squares in 2 ways, for example, as 292546816 + 1813056400 = 17104^2 + 42580^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1604225 + ... + 1605536.

Almost surely, 2^2105603216 is an apocalyptic number.

It is an amenable number.

2105603216 is a deficient number, since it is larger than the sum of its proper divisors (2073506908).

2105603216 is a wasteful number, since it uses less digits than its factorization.

2105603216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209810 (or 3209804 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2105603216 is about 45886.8523217708. The cubic root of 2105603216 is about 1281.7170998046.

Adding to 2105603216 its reverse (6123065012), we get a palindrome (8228668228).

The spelling of 2105603216 in words is "two billion, one hundred five million, six hundred three thousand, two hundred sixteen".