6669675520 has 88 divisors (see below), whose sum is σ = 16042748400. Its totient is φ = 2660646912.

The previous prime is 6669675517. The next prime is 6669675521. The reversal of 6669675520 is 255769666.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6669675521) 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, 2143726 + ... + 2146834.

Almost surely, 2^6669675520 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 6669675520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8021374200).

6669675520 is an abundant number, since it is smaller than the sum of its proper divisors (9373072880).

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

6669675520 is a wasteful number, since it uses less digits than its factorization.

6669675520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 52.

The square root of 6669675520 is about 81668.0814027120. The cubic root of 6669675520 is about 1882.3551591150.

The spelling of 6669675520 in words is "six billion, six hundred sixty-nine million, six hundred seventy-five thousand, five hundred twenty".