11051111050550 has 24 divisors (see below), whose sum is σ = 20608735170816. Its totient is φ = 4408902782240.

The previous prime is 11051111050537. The next prime is 11051111050633. The reversal of 11051111050550 is 5505011115011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288521609 + ... + 288559908.

It is an arithmetic number, because the mean of its divisors is an integer number (858697298784).

Almost surely, 2^{11051111050550} is an apocalyptic number.

11051111050550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11051111050550 is a deficient number, since it is larger than the sum of its proper divisors (9557624120266).

11051111050550 is a wasteful number, since it uses less digits than its factorization.

11051111050550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577081912 (or 577081907 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 26.

Adding to 11051111050550 its reverse (5505011115011), we get a palindrome (16556122165561).

The spelling of 11051111050550 in words is "eleven trillion, fifty-one billion, one hundred eleven million, fifty thousand, five hundred fifty".