6645106 has 16 divisors (see below), whose sum is σ = 10821888. Its totient is φ = 3042000.

The previous prime is 6645083. The next prime is 6645131. The reversal of 6645106 is 6015466.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431 + ... + 4381.

It is an arithmetic number, because the mean of its divisors is an integer number (676368).

Almost surely, 2^6645106 is an apocalyptic number.

6645106 is a deficient number, since it is larger than the sum of its proper divisors (4176782).

6645106 is a wasteful number, since it uses less digits than its factorization.

6645106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6645106 is about 2577.8103110974. The cubic root of 6645106 is about 188.0040930149.

The spelling of 6645106 in words is "six million, six hundred forty-five thousand, one hundred six".