669625313280 has 1152 divisors, whose sum is σ = 2794616173440. Its totient is φ = 135258439680.

The previous prime is 669625313257. The next prime is 669625313299. The reversal of 669625313280 is 82313526966.

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 95 ways as a sum of consecutive naturals, for example, 612648414 + ... + 612649506.

It is an arithmetic number, because the mean of its divisors is an integer number (2425882095).

Almost surely, 2^669625313280 is an apocalyptic number.

669625313280 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 669625313280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397308086720).

669625313280 is an abundant number, since it is smaller than the sum of its proper divisors (2124990860160).

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

669625313280 is a wasteful number, since it uses less digits than its factorization.

669625313280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 669625313280 in words is "six hundred sixty-nine billion, six hundred twenty-five million, three hundred thirteen thousand, two hundred eighty".