6649853112 has 120 divisors (see below), whose sum is σ = 21666787560. Its totient is φ = 1899948960.

The previous prime is 6649853107. The next prime is 6649853123. The reversal of 6649853112 is 2113589466.

6649853112 is a `hidden beast` number, since 66 + 49 + 8 + 531 + 12 = 666.

It is a super-2 number, since 2×6649853112² = 88441092822352169088, 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 29 ways as a sum of consecutive naturals, for example, 72964 + ... + 136467.

It is an arithmetic number, because the mean of its divisors is an integer number (180556563).

Almost surely, 2^6649853112 is an apocalyptic number.

It is an amenable number.

6649853112 is an abundant number, since it is smaller than the sum of its proper divisors (15016934448).

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

6649853112 is a wasteful number, since it uses less digits than its factorization.

6649853112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209463 (or 209443 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 6649853112 is about 81546.6315184141. The cubic root of 6649853112 is about 1880.4885096899.

The spelling of 6649853112 in words is "six billion, six hundred forty-nine million, eight hundred fifty-three thousand, one hundred twelve".