6660650528 has 48 divisors (see below), whose sum is σ = 15176206080. Its totient is φ = 2818423296.

The previous prime is 6660650527. The next prime is 6660650533. The reversal of 6660650528 is 8250560666.

It is a happy number.

It is a super-2 number, since 2×6660650528² = 88728530912293357568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6660650527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170501 + ... + 205892.

It is an arithmetic number, because the mean of its divisors is an integer number (316170960).

Almost surely, 2^6660650528 is an apocalyptic number.

It is an amenable number.

6660650528 is an abundant number, since it is smaller than the sum of its proper divisors (8515555552).

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

6660650528 is a wasteful number, since it uses less digits than its factorization.

6660650528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376489 (or 376481 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 6660650528 is about 81612.8086025717. The cubic root of 6660650528 is about 1881.5057470537.

The spelling of 6660650528 in words is "six billion, six hundred sixty million, six hundred fifty thousand, five hundred twenty-eight".