6616418256 has 300 divisors, whose sum is σ = 22803799392. Its totient is φ = 1845680256.

The previous prime is 6616418243. The next prime is 6616418273. The reversal of 6616418256 is 6528146166.

6616418256 is a `hidden beast` number, since 6 + 616 + 4 + 1 + 8 + 25 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2729461 + ... + 2731883.

Almost surely, 2^6616418256 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 6616418256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11401899696).

6616418256 is an abundant number, since it is smaller than the sum of its proper divisors (16187381136).

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

6616418256 is a wasteful number, since it uses less digits than its factorization.

6616418256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500 (or 2478 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 6616418256 is about 81341.3686631839. The cubic root of 6616418256 is about 1877.3315711587.

The spelling of 6616418256 in words is "six billion, six hundred sixteen million, four hundred eighteen thousand, two hundred fifty-six".