105550056108 has 144 divisors (see below), whose sum is σ = 308886323200. Its totient is φ = 29767554432.

The previous prime is 105550056097. The next prime is 105550056149. The reversal of 105550056108 is 801650055501.

It is a super-2 number, since 2×105550056108² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6360510 + ... + 6377082.

Almost surely, 2^105550056108 is an apocalyptic number.

105550056108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105550056108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154443161600).

105550056108 is an abundant number, since it is smaller than the sum of its proper divisors (203336267092).

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

105550056108 is a wasteful number, since it uses less digits than its factorization.

105550056108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16916 (or 16911 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The spelling of 105550056108 in words is "one hundred five billion, five hundred fifty million, fifty-six thousand, one hundred eight".