6699668532 has 24 divisors (see below), whose sum is σ = 15635338656. Its totient is φ = 2232825888.

The previous prime is 6699668519. The next prime is 6699668561. The reversal of 6699668532 is 2358669966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25218 + ... + 118470.

It is an arithmetic number, because the mean of its divisors is an integer number (651472444).

Almost surely, 2^6699668532 is an apocalyptic number.

It is an amenable number.

6699668532 is an abundant number, since it is smaller than the sum of its proper divisors (8935670124).

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

6699668532 is a wasteful number, since it uses less digits than its factorization.

6699668532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99247 (or 99245 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 60.

The square root of 6699668532 is about 81851.5029306121. The cubic root of 6699668532 is about 1885.1725417184.

The spelling of 6699668532 in words is "six billion, six hundred ninety-nine million, six hundred sixty-eight thousand, five hundred thirty-two".