551116611 has 12 divisors (see below), whose sum is σ = 796545360. Its totient is φ = 367185840.

The previous prime is 551116571. The next prime is 551116619. The reversal of 551116611 is 116611155.

551116611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551116611 - 2⁷ = 551116483 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (551116619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2535 + ... + 33296.

It is an arithmetic number, because the mean of its divisors is an integer number (66378780).

Almost surely, 2^551116611 is an apocalyptic number.

551116611 is a deficient number, since it is larger than the sum of its proper divisors (245428749).

551116611 is a wasteful number, since it uses less digits than its factorization.

551116611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37546 (or 37543 counting only the distinct ones).

The product of its digits is 900, while the sum is 27.

The square root of 551116611 is about 23475.8729550149. The cubic root of 551116611 is about 819.8753583108.

Adding to 551116611 its reverse (116611155), we get a palindrome (667727766).

It can be divided in two parts, 5511 and 16611, that added together give a palindrome (22122).

The spelling of 551116611 in words is "five hundred fifty-one million, one hundred sixteen thousand, six hundred eleven".