647482671616 has 80 divisors (see below), whose sum is σ = 1411588857888. Its totient is φ = 294252134400.

The previous prime is 647482671587. The next prime is 647482671659. The reversal of 647482671616 is 616176284746.

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, 42812536 + ... + 42827656.

Almost surely, 2^647482671616 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 647482671616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705794428944).

647482671616 is an abundant number, since it is smaller than the sum of its proper divisors (764106186272).

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

647482671616 is a wasteful number, since it uses less digits than its factorization.

647482671616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22753 (or 22737 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 58.

The spelling of 647482671616 in words is "six hundred forty-seven billion, four hundred eighty-two million, six hundred seventy-one thousand, six hundred sixteen".