11001110550551 has 4 divisors (see below), whose sum is σ = 12001211509704. Its totient is φ = 10001009591400.

The previous prime is 11001110550523. The next prime is 11001110550583. The reversal of 11001110550551 is 15505501110011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11001110550551 - 2³⁰ = 11000036808727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11001110550551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001110550251) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 500050479560 + ... + 500050479581.

It is an arithmetic number, because the mean of its divisors is an integer number (3000302877426).

Almost surely, 2^{11001110550551} is an apocalyptic number.

11001110550551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11001110550551 is a deficient number, since it is larger than the sum of its proper divisors (1000100959153).

11001110550551 is a wasteful number, since it uses less digits than its factorization.

11001110550551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000100959152.

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

Adding to 11001110550551 its reverse (15505501110011), we get a palindrome (26506611660562).

The spelling of 11001110550551 in words is "eleven trillion, one billion, one hundred ten million, five hundred fifty thousand, five hundred fifty-one".