6655616 has 64 divisors (see below), whose sum is σ = 15055200. Its totient is φ = 2903040.

The previous prime is 6655603. The next prime is 6655631. The reversal of 6655616 is 6165566.

It is a tau number, because it is divible by the number of its divisors (64).

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, 40751 + ... + 40913.

Almost surely, 2^6655616 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 6655616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7527600).

6655616 is an abundant number, since it is smaller than the sum of its proper divisors (8399584).

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

6655616 is a wasteful number, since it uses less digits than its factorization.

6655616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 205 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 6655616 is about 2579.8480575414. The cubic root of 6655616 is about 188.1031575101.

The spelling of 6655616 in words is "six million, six hundred fifty-five thousand, six hundred sixteen".