11105055550 has 96 divisors (see below), whose sum is σ = 22045776480. Its totient is φ = 4154841600.

The previous prime is 11105055547. The next prime is 11105055589. The reversal of 11105055550 is 5555050111.

It is a congruent number.

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, 6377680 + ... + 6379420.

It is an arithmetic number, because the mean of its divisors is an integer number (229643505).

Almost surely, 2^11105055550 is an apocalyptic number.

11105055550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11105055550 is a deficient number, since it is larger than the sum of its proper divisors (10940720930).

11105055550 is a wasteful number, since it uses less digits than its factorization.

11105055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918 (or 1913 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 11105055550 in words is "eleven billion, one hundred five million, fifty-five thousand, five hundred fifty".