6660532530 has 64 divisors (see below), whose sum is σ = 17810081280. Its totient is φ = 1771276032.

The previous prime is 6660532513. The next prime is 6660532547. The reversal of 6660532530 is 352350666.

It is an interprime number because it is at equal distance from previous prime (6660532513) and next prime (6660532547).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65482 + ... + 132698.

It is an arithmetic number, because the mean of its divisors is an integer number (278282520).

Almost surely, 2^6660532530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6660532530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8905040640).

6660532530 is an abundant number, since it is smaller than the sum of its proper divisors (11149548750).

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

6660532530 is a wasteful number, since it uses less digits than its factorization.

6660532530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67600 (or 67594 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The square root of 6660532530 is about 81612.0856858836. The cubic root of 6660532530 is about 1881.4946362658.

The spelling of 6660532530 in words is "six billion, six hundred sixty million, five hundred thirty-two thousand, five hundred thirty".