1100100550556 has 18 divisors (see below), whose sum is σ = 2239490406888. Its totient is φ = 471471664440.

The previous prime is 1100100550543. The next prime is 1100100550567. The reversal of 1100100550556 is 6550550010011.

It is a happy number.

It is a super-2 number, since 2×1100100550556² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2806378760 + ... + 2806379151.

It is an arithmetic number, because the mean of its divisors is an integer number (124416133716).

Almost surely, 2^{1100100550556} is an apocalyptic number.

It is an amenable number.

1100100550556 is an abundant number, since it is smaller than the sum of its proper divisors (1139389856332).

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

1100100550556 is a wasteful number, since it uses less digits than its factorization.

1100100550556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612757929 (or 5612757920 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

Adding to 1100100550556 its reverse (6550550010011), we get a palindrome (7650650560567).

The spelling of 1100100550556 in words is "one trillion, one hundred billion, one hundred million, five hundred fifty thousand, five hundred fifty-six".