6601210000 has 200 divisors, whose sum is σ = 19928170944. Its totient is φ = 2057280000.

The previous prime is 6601209971. The next prime is 6601210003. The reversal of 6601210000 is 121066.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (6601210003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 765714 + ... + 774286.

Almost surely, 2^6601210000 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 6601210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9964085472).

6601210000 is an abundant number, since it is smaller than the sum of its proper divisors (13326960944).

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

6601210000 is a wasteful number, since it uses less digits than its factorization.

6601210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8619 (or 8598 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 6601210000 is about 81247.8307402727. The cubic root of 6601210000 is about 1875.8920792069.

Adding to 6601210000 its reverse (121066), we get a palindrome (6601331066).

The spelling of 6601210000 in words is "six billion, six hundred one million, two hundred ten thousand".