6247446656 has 64 divisors (see below), whose sum is σ = 13833892800. Its totient is φ = 2786135040.

The previous prime is 6247446649. The next prime is 6247446701. The reversal of 6247446656 is 6566447426.

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, 32765 + ... + 116483.

It is an arithmetic number, because the mean of its divisors is an integer number (216154575).

Almost surely, 2^6247446656 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 6247446656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6916946400).

6247446656 is an abundant number, since it is smaller than the sum of its proper divisors (7586446144).

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

6247446656 is a wasteful number, since it uses less digits than its factorization.

6247446656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83797 (or 83785 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 50.

The square root of 6247446656 is about 79040.7910891585. The cubic root of 6247446656 is about 1841.7648724938.

The spelling of 6247446656 in words is "six billion, two hundred forty-seven million, four hundred forty-six thousand, six hundred fifty-six".