6688646046 has 96 divisors (see below), whose sum is σ = 15122764800. Its totient is φ = 2135060928.

The previous prime is 6688646023. The next prime is 6688646053. The reversal of 6688646046 is 6406468866.

6688646046 is a `hidden beast` number, since 6 + 68 + 86 + 460 + 46 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6688645983 and 6688646001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11166055 + ... + 11166653.

It is an arithmetic number, because the mean of its divisors is an integer number (157528800).

Almost surely, 2^6688646046 is an apocalyptic number.

6688646046 is an abundant number, since it is smaller than the sum of its proper divisors (8434118754).

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

6688646046 is a wasteful number, since it uses less digits than its factorization.

6688646046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The square root of 6688646046 is about 81784.1429985055. The cubic root of 6688646046 is about 1884.1381276606.

The spelling of 6688646046 in words is "six billion, six hundred eighty-eight million, six hundred forty-six thousand, forty-six".