6669919200 has 432 divisors, whose sum is σ = 25862094720. Its totient is φ = 1487969280.

The previous prime is 6669919189. The next prime is 6669919229. The reversal of 6669919200 is 29199666.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 6669919200.

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 71 ways as a sum of consecutive naturals, for example, 5056141 + ... + 5057459.

It is an arithmetic number, because the mean of its divisors is an integer number (59865960).

Almost surely, 2^6669919200 is an apocalyptic number.

6669919200 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 6669919200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12931047360).

6669919200 is an abundant number, since it is smaller than the sum of its proper divisors (19192175520).

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

6669919200 is a wasteful number, since it uses less digits than its factorization.

6669919200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 48.

The square root of 6669919200 is about 81669.5732816084. The cubic root of 6669919200 is about 1882.3780831048.

The spelling of 6669919200 in words is "six billion, six hundred sixty-nine million, nine hundred nineteen thousand, two hundred".