6657280000 has 240 divisors, whose sum is σ = 19035656640. Its totient is φ = 2279424000.

The previous prime is 6657279989. The next prime is 6657280009. The reversal of 6657280000 is 827566.

It is not an unprimeable number, because it can be changed into a prime (6657280009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8959629 + ... + 8960371.

It is an arithmetic number, because the mean of its divisors is an integer number (79315236).

Almost surely, 2^6657280000 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 6657280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9517828320).

6657280000 is an abundant number, since it is smaller than the sum of its proper divisors (12378376640).

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

6657280000 is an frugal number, since it uses more digits than its factorization.

6657280000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 6657280000 is about 81592.1564857799. The cubic root of 6657280000 is about 1881.1883237139.

The spelling of 6657280000 in words is "six billion, six hundred fifty-seven million, two hundred eighty thousand".