100111005556 has 12 divisors (see below), whose sum is σ = 180845687680. Its totient is φ = 48440809080.

The previous prime is 100111005539. The next prime is 100111005559. The reversal of 100111005556 is 655500111001.

It is a self number, because there is not a number n which added to its sum of digits gives 100111005556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111005559) 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, 403673286 + ... + 403673533.

Almost surely, 2^100111005556 is an apocalyptic number.

It is an amenable number.

100111005556 is a deficient number, since it is larger than the sum of its proper divisors (80734682124).

100111005556 is a wasteful number, since it uses less digits than its factorization.

100111005556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807346854 (or 807346852 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 100111005556 its reverse (655500111001), we get a palindrome (755611116557).

The spelling of 100111005556 in words is "one hundred billion, one hundred eleven million, five thousand, five hundred fifty-six".