6609852720 has 240 divisors, whose sum is σ = 23584552992. Its totient is φ = 1719429120.

The previous prime is 6609852719. The next prime is 6609852727. The reversal of 6609852720 is 272589066.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6609852727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 792894 + ... + 801186.

Almost surely, 2^6609852720 is an apocalyptic number.

6609852720 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 6609852720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11792276496).

6609852720 is an abundant number, since it is smaller than the sum of its proper divisors (16974700272).

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

6609852720 is a wasteful number, since it uses less digits than its factorization.

6609852720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8362 (or 8344 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 6609852720 is about 81301.0007318483. Note that the first 3 decimals coincide. The cubic root of 6609852720 is about 1876.7104008743.

It can be divided in two parts, 6609 and 852720, that added together give a square (859329 = 927²).

The spelling of 6609852720 in words is "six billion, six hundred nine million, eight hundred fifty-two thousand, seven hundred twenty".