6657809548 has 12 divisors (see below), whose sum is σ = 12547410400. Its totient is φ = 3072835152.

The previous prime is 6657809539. The next prime is 6657809549. The reversal of 6657809548 is 8459087566.

It is a junction number, because it is equal to n+sod(n) for n = 6657809492 and 6657809501.

It is not an unprimeable number, because it can be changed into a prime (6657809549) 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, 64017348 + ... + 64017451.

Almost surely, 2^6657809548 is an apocalyptic number.

It is an amenable number.

6657809548 is a deficient number, since it is larger than the sum of its proper divisors (5889600852).

6657809548 is a wasteful number, since it uses less digits than its factorization.

6657809548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128034816 (or 128034814 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 58.

The square root of 6657809548 is about 81595.4015125853. The cubic root of 6657809548 is about 1881.2382015971.

The spelling of 6657809548 in words is "six billion, six hundred fifty-seven million, eight hundred nine thousand, five hundred forty-eight".