6645356 has 12 divisors (see below), whose sum is σ = 11651640. Its totient is φ = 3316320.

The previous prime is 6645341. The next prime is 6645389. The reversal of 6645356 is 6535466.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376 + ... + 3896.

It is an arithmetic number, because the mean of its divisors is an integer number (970970).

Almost surely, 2^6645356 is an apocalyptic number.

It is an amenable number.

6645356 is a deficient number, since it is larger than the sum of its proper divisors (5006284).

6645356 is a wasteful number, since it uses less digits than its factorization.

6645356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184 (or 3182 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

The square root of 6645356 is about 2577.8588014086. The cubic root of 6645356 is about 188.0064506614.

The spelling of 6645356 in words is "six million, six hundred forty-five thousand, three hundred fifty-six".