6650042880 has 320 divisors, whose sum is σ = 23442249600. Its totient is φ = 1597833216.

The previous prime is 6650042879. The next prime is 6650042891. The reversal of 6650042880 is 882400566.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 4292346 + ... + 4293894.

It is an arithmetic number, because the mean of its divisors is an integer number (73257030).

Almost surely, 2^6650042880 is an apocalyptic number.

6650042880 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 6650042880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11721124800).

6650042880 is an abundant number, since it is smaller than the sum of its proper divisors (16792206720).

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

6650042880 is a wasteful number, since it uses less digits than its factorization.

6650042880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 6650042880 is about 81547.7950652254. The cubic root of 6650042880 is about 1880.5063974609.

The spelling of 6650042880 in words is "six billion, six hundred fifty million, forty-two thousand, eight hundred eighty".