11011000605550 has 24 divisors (see below), whose sum is σ = 22342321229832. Its totient is φ = 4004000220000.

The previous prime is 11011000605529. The next prime is 11011000605593. The reversal of 11011000605550 is 5550600011011.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10010000001 + ... + 10010001100.

It is an arithmetic number, because the mean of its divisors is an integer number (930930051243).

Almost surely, 2^{11011000605550} is an apocalyptic number.

11011000605550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11011000605550 is an abundant number, since it is smaller than the sum of its proper divisors (11331320624282).

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

11011000605550 is a wasteful number, since it uses less digits than its factorization.

11011000605550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020001124 (or 20020001119 counting only the distinct ones).

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

Adding to 11011000605550 its reverse (5550600011011), we get a palindrome (16561600616561).

The spelling of 11011000605550 in words is "eleven trillion, eleven billion, six hundred five thousand, five hundred fifty".