6606799680 has 224 divisors, whose sum is σ = 23573378304. Its totient is φ = 1555513344.

The previous prime is 6606799649. The next prime is 6606799721. The reversal of 6606799680 is 869976066.

It is a self number, because there is not a number n which added to its sum of digits gives 6606799680.

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, 275532 + ... + 298548.

It is an arithmetic number, because the mean of its divisors is an integer number (105238296).

Almost surely, 2^6606799680 is an apocalyptic number.

6606799680 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 6606799680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11786689152).

6606799680 is an abundant number, since it is smaller than the sum of its proper divisors (16966578624).

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

6606799680 is a wasteful number, since it uses less digits than its factorization.

6606799680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23073 (or 23063 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The square root of 6606799680 is about 81282.2224105616. Note that the first 3 decimals coincide. The cubic root of 6606799680 is about 1876.4214103549.

The spelling of 6606799680 in words is "six billion, six hundred six million, seven hundred ninety-nine thousand, six hundred eighty".