6663355 has 4 divisors (see below), whose sum is σ = 7996032. Its totient is φ = 5330680.

The previous prime is 6663347. The next prime is 6663383. The reversal of 6663355 is 5533666.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6663355 - 2³ = 6663347 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6663355.

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, 666331 + ... + 666340.

It is an arithmetic number, because the mean of its divisors is an integer number (1999008).

Almost surely, 2^6663355 is an apocalyptic number.

6663355 is a deficient number, since it is larger than the sum of its proper divisors (1332677).

6663355 is a wasteful number, since it uses less digits than its factorization.

6663355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332676.

The product of its digits is 48600, while the sum is 34.

The square root of 6663355 is about 2581.3475163178. The cubic root of 6663355 is about 188.1760366381.

The spelling of 6663355 in words is "six million, six hundred sixty-three thousand, three hundred fifty-five".