5551688688 has 160 divisors (see below), whose sum is σ = 17834858496. Its totient is φ = 1448976384.

The previous prime is 5551688669. The next prime is 5551688707. The reversal of 5551688688 is 8868861555.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5551688669) and next prime (5551688707).

It is a super-2 number, since 2×5551688688² = 61642494576934322688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417145 + ... + 430247.

Almost surely, 2^5551688688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5551688688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8917429248).

5551688688 is an abundant number, since it is smaller than the sum of its proper divisors (12283169808).

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

5551688688 is a wasteful number, since it uses less digits than its factorization.

5551688688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13231 (or 13225 counting only the distinct ones).

The product of its digits is 18432000, while the sum is 60.

The square root of 5551688688 is about 74509.6549985302. The cubic root of 5551688688 is about 1770.6866039356.

The spelling of 5551688688 in words is "five billion, five hundred fifty-one million, six hundred eighty-eight thousand, six hundred eighty-eight".