6616456 has 64 divisors (see below), whose sum is σ = 16174080. Its totient is φ = 2460480.

The previous prime is 6616447. The next prime is 6616469. The reversal of 6616456 is 6546166.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13935 + ... + 14401.

It is an arithmetic number, because the mean of its divisors is an integer number (252720).

Almost surely, 2^6616456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6616456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8087040).

6616456 is an abundant number, since it is smaller than the sum of its proper divisors (9557624).

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

6616456 is a wasteful number, since it uses less digits than its factorization.

6616456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 510 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 6616456 is about 2572.2472664967. The cubic root of 6616456 is about 187.7335140959.

It can be divided in two parts, 661 and 6456, that added together give a palindrome (7117).

The spelling of 6616456 in words is "six million, six hundred sixteen thousand, four hundred fifty-six".