2103105664 has 32 divisors (see below), whose sum is σ = 4570673040. Its totient is φ = 955956480.

The previous prime is 2103105661. The next prime is 2103105677. The reversal of 2103105664 is 4665013012.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (2103105661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745434 + ... + 748249.

Almost surely, 2^2103105664 is an apocalyptic number.

It is an amenable number.

2103105664 is an abundant number, since it is smaller than the sum of its proper divisors (2467567376).

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

2103105664 is a wasteful number, since it uses less digits than its factorization.

2103105664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493708 (or 1493696 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2103105664 is about 45859.6300028685. The cubic root of 2103105664 is about 1281.2101316042.

Adding to 2103105664 its reverse (4665013012), we get a palindrome (6768118676).

The spelling of 2103105664 in words is "two billion, one hundred three million, one hundred five thousand, six hundred sixty-four".