6661335 has 8 divisors (see below), whose sum is σ = 10658160. Its totient is φ = 3552704.

The previous prime is 6661327. The next prime is 6661337. The reversal of 6661335 is 5331666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6661335 - 2³ = 6661327 is a prime.

6661335 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222030 + ... + 222059.

It is an arithmetic number, because the mean of its divisors is an integer number (1332270).

Almost surely, 2^6661335 is an apocalyptic number.

6661335 is a deficient number, since it is larger than the sum of its proper divisors (3996825).

6661335 is a wasteful number, since it uses less digits than its factorization.

6661335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444097.

The product of its digits is 9720, while the sum is 30.

The square root of 6661335 is about 2580.9562181486. The cubic root of 6661335 is about 188.1570194907.

It can be divided in two parts, 6661 and 335, that added together give a palindrome (6996).

The spelling of 6661335 in words is "six million, six hundred sixty-one thousand, three hundred thirty-five".