6660898524 has 72 divisors (see below), whose sum is σ = 19906155360. Its totient is φ = 1837487232.

The previous prime is 6660898513. The next prime is 6660898579. The reversal of 6660898524 is 4258980666.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 448419 + ... + 463034.

It is an arithmetic number, because the mean of its divisors is an integer number (276474380).

Almost surely, 2^6660898524 is an apocalyptic number.

It is an amenable number.

6660898524 is an abundant number, since it is smaller than the sum of its proper divisors (13245256836).

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

6660898524 is a wasteful number, since it uses less digits than its factorization.

6660898524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911499 (or 911494 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 6660898524 is about 81614.3279332741. The cubic root of 6660898524 is about 1881.5290981316.

The spelling of 6660898524 in words is "six billion, six hundred sixty million, eight hundred ninety-eight thousand, five hundred twenty-four".