6660655000 has 80 divisors (see below), whose sum is σ = 15987038760. Its totient is φ = 2599200000.

The previous prime is 6660654989. The next prime is 6660655003. The reversal of 6660655000 is 5560666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660655003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 188755 + ... + 221245.

Almost surely, 2^6660655000 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 6660655000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7993519380).

6660655000 is an abundant number, since it is smaller than the sum of its proper divisors (9326383760).

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

6660655000 is a wasteful number, since it uses less digits than its factorization.

6660655000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32558 (or 32539 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 6660655000 is about 81612.8360002273. The cubic root of 6660655000 is about 1881.5061681383.

The spelling of 6660655000 in words is "six billion, six hundred sixty million, six hundred fifty-five thousand".