6669143040 has 264 divisors, whose sum is σ = 24816223152. Its totient is φ = 1524203520.

The previous prime is 6669143023. The next prime is 6669143069. The reversal of 6669143040 is 403419666.

It is a self number, because there is not a number n which added to its sum of digits gives 6669143040.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 748210 + ... + 757070.

Almost surely, 2^6669143040 is an apocalyptic number.

6669143040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6669143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12408111576).

6669143040 is an abundant number, since it is smaller than the sum of its proper divisors (18147080112).

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

6669143040 is a wasteful number, since it uses less digits than its factorization.

6669143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8903 (or 8878 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 6669143040 is about 81664.8213124844. The cubic root of 6669143040 is about 1882.3050645666.

The spelling of 6669143040 in words is "six billion, six hundred sixty-nine million, one hundred forty-three thousand, forty".