6688266252 has 12 divisors (see below), whose sum is σ = 15605954616. Its totient is φ = 2229422080.

The previous prime is 6688266217. The next prime is 6688266271. The reversal of 6688266252 is 2526628866.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 6688266195 and 6688266204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278677749 + ... + 278677772.

It is an arithmetic number, because the mean of its divisors is an integer number (1300496218).

Almost surely, 2^6688266252 is an apocalyptic number.

It is an amenable number.

6688266252 is an abundant number, since it is smaller than the sum of its proper divisors (8917688364).

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

6688266252 is a wasteful number, since it uses less digits than its factorization.

6688266252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557355528 (or 557355526 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 51.

The square root of 6688266252 is about 81781.8210362181. The cubic root of 6688266252 is about 1884.1024653410.

The spelling of 6688266252 in words is "six billion, six hundred eighty-eight million, two hundred sixty-six thousand, two hundred fifty-two".