100105005556 has 6 divisors (see below), whose sum is σ = 175183759730. Its totient is φ = 50052502776.

The previous prime is 100105005509. The next prime is 100105005577. The reversal of 100105005556 is 655500501001.

It can be written as a sum of positive squares in only one way, i.e., 53001248400 + 47103757156 = 230220^2 + 217034^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12513125691 + ... + 12513125698.

Almost surely, 2^100105005556 is an apocalyptic number.

It is an amenable number.

100105005556 is a deficient number, since it is larger than the sum of its proper divisors (75078754174).

100105005556 is a wasteful number, since it uses less digits than its factorization.

100105005556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25026251393 (or 25026251391 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 100105005556 its reverse (655500501001), we get a palindrome (755605506557).

The spelling of 100105005556 in words is "one hundred billion, one hundred five million, five thousand, five hundred fifty-six".