1111111000550 has 12 divisors (see below), whose sum is σ = 2066666461116. Its totient is φ = 444444400200.

The previous prime is 1111111000529. The next prime is 1111111000579. The reversal of 1111111000550 is 550001111111.

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, 11111109956 + ... + 11111110055.

It is an arithmetic number, because the mean of its divisors is an integer number (172222205093).

Almost surely, 2^{1111111000550} is an apocalyptic number.

1111111000550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111111000550 is a deficient number, since it is larger than the sum of its proper divisors (955555460566).

1111111000550 is a wasteful number, since it uses less digits than its factorization.

1111111000550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22222220023 (or 22222220018 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 17.

Adding to 1111111000550 its reverse (550001111111), we get a palindrome (1661112111661).

The spelling of 1111111000550 in words is "one trillion, one hundred eleven billion, one hundred eleven million, five hundred fifty", and thus it is an aban number.