6669112320000 has 1400 divisors, whose sum is σ = 26833573692156. Its totient is φ = 1640300544000.

The previous prime is 6669112319953. The next prime is 6669112320011. The reversal of 6669112320000 is 232119666.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 763512459264 + 5905599860736 = 873792^2 + 2430144^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 5391359382 + ... + 5391360618.

Almost surely, 2^{6669112320000} is an apocalyptic number.

6669112320000 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 6669112320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13416786846078).

6669112320000 is an abundant number, since it is smaller than the sum of its proper divisors (20164461372156).

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

6669112320000 is an equidigital number, since it uses as much as digits as its factorization.

6669112320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

Adding to 6669112320000 its reverse (232119666), we get a palindrome (6669344439666).

The spelling of 6669112320000 in words is "six trillion, six hundred sixty-nine billion, one hundred twelve million, three hundred twenty thousand".