6643110042 has 24 divisors (see below), whose sum is σ = 14533150944. Its totient is φ = 2192870664.

The previous prime is 6643110029. The next prime is 6643110121. The reversal of 6643110042 is 2400113466.

6643110042 is a `hidden beast` number, since 6 + 643 + 1 + 10 + 0 + 4 + 2 = 666.

It is a super-2 number, since 2×6643110042² = 88261822060242483528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6643109988 and 6643110015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1789708 + ... + 1793415.

It is an arithmetic number, because the mean of its divisors is an integer number (605547956).

Almost surely, 2^6643110042 is an apocalyptic number.

6643110042 is an abundant number, since it is smaller than the sum of its proper divisors (7890040902).

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

6643110042 is a wasteful number, since it uses less digits than its factorization.

6643110042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583234 (or 3583231 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6643110042 is about 81505.2761605039. The cubic root of 6643110042 is about 1879.8526783985.

The spelling of 6643110042 in words is "six billion, six hundred forty-three million, one hundred ten thousand, forty-two".