6598457856 has 160 divisors (see below), whose sum is σ = 20382088320. Its totient is φ = 2103754752.

The previous prime is 6598457851. The next prime is 6598457861. The reversal of 6598457856 is 6587548956.

6598457856 is a `hidden beast` number, since 6 + 5 + 9 + 8 + 4 + 578 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (6598457851) and next prime (6598457861).

It is a junction number, because it is equal to n+sod(n) for n = 6598457793 and 6598457802.

It is not an unprimeable number, because it can be changed into a prime (6598457851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307576 + ... + 328328.

It is an arithmetic number, because the mean of its divisors is an integer number (127388052).

Almost surely, 2^6598457856 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 6598457856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10191044160).

6598457856 is an abundant number, since it is smaller than the sum of its proper divisors (13783630464).

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

6598457856 is a wasteful number, since it uses less digits than its factorization.

6598457856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20803 (or 20781 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 63.

The square root of 6598457856 is about 81230.8922516551. The cubic root of 6598457856 is about 1875.6313470699.

The spelling of 6598457856 in words is "six billion, five hundred ninety-eight million, four hundred fifty-seven thousand, eight hundred fifty-six".