669414200000 has 336 divisors, whose sum is σ = 2043569078208. Its totient is φ = 211852800000.

The previous prime is 669414199873. The next prime is 669414200027. The reversal of 669414200000 is 2414966.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 669414200000.

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 47 ways as a sum of consecutive naturals, for example, 18181610 + ... + 18218390.

It is an arithmetic number, because the mean of its divisors is an integer number (6082050828).

Almost surely, 2^669414200000 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 669414200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021784539104).

669414200000 is an abundant number, since it is smaller than the sum of its proper divisors (1374154878208).

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

669414200000 is an equidigital number, since it uses as much as digits as its factorization.

669414200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36838 (or 36808 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 669414200000 its reverse (2414966), we get a palindrome (669416614966).

The spelling of 669414200000 in words is "six hundred sixty-nine billion, four hundred fourteen million, two hundred thousand".