6688885105 has 16 divisors (see below), whose sum is σ = 9194632704. Its totient is φ = 4576011840.

The previous prime is 6688885057. The next prime is 6688885109. The reversal of 6688885105 is 5015888866.

It is a happy number.

It is not a de Polignac number, because 6688885105 - 2³¹ = 4541401457 is a prime.

It is a super-2 number, since 2×6688885105² = 89482367895781722050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6688885109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206622 + ... + 236791.

It is an arithmetic number, because the mean of its divisors is an integer number (574664544).

Almost surely, 2^6688885105 is an apocalyptic number.

It is an amenable number.

6688885105 is a deficient number, since it is larger than the sum of its proper divisors (2505747599).

6688885105 is a wasteful number, since it uses less digits than its factorization.

6688885105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443856.

The product of its (nonzero) digits is 3686400, while the sum is 55.

The square root of 6688885105 is about 81785.6045095957. The cubic root of 6688885105 is about 1884.1605743964.

The spelling of 6688885105 in words is "six billion, six hundred eighty-eight million, eight hundred eighty-five thousand, one hundred five".