6573656280 has 128 divisors (see below), whose sum is σ = 20392404480. Its totient is φ = 1694100480.

The previous prime is 6573656279. The next prime is 6573656311. The reversal of 6573656280 is 826563756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520197 + ... + 532683.

It is an arithmetic number, because the mean of its divisors is an integer number (159315660).

Almost surely, 2^6573656280 is an apocalyptic number.

6573656280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6573656280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10196202240).

6573656280 is an abundant number, since it is smaller than the sum of its proper divisors (13818748200).

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

6573656280 is a wasteful number, since it uses less digits than its factorization.

6573656280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12649 (or 12645 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The square root of 6573656280 is about 81078.0875452795. The cubic root of 6573656280 is about 1873.2784226196.

The spelling of 6573656280 in words is "six billion, five hundred seventy-three million, six hundred fifty-six thousand, two hundred eighty".