551111168 has 40 divisors (see below), whose sum is σ = 1165937652. Its totient is φ = 259342336.

The previous prime is 551111161. The next prime is 551111179. The reversal of 551111168 is 861111155.

It can be written as a sum of positive squares in 2 ways, for example, as 543449344 + 7661824 = 23312^2 + 2768^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 551111168.

It is not an unprimeable number, because it can be changed into a prime (551111161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22955 + ... + 40362.

Almost surely, 2^551111168 is an apocalyptic number.

It is an amenable number.

551111168 is an abundant number, since it is smaller than the sum of its proper divisors (614826484).

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

551111168 is an equidigital number, since it uses as much as digits as its factorization.

551111168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63352 (or 63336 counting only the distinct ones).

The product of its digits is 1200, while the sum is 29.

The square root of 551111168 is about 23475.7570271972. The cubic root of 551111168 is about 819.8726591867.

The spelling of 551111168 in words is "five hundred fifty-one million, one hundred eleven thousand, one hundred sixty-eight".