668498485200 has 1920 divisors, whose sum is σ = 2909680435200. Its totient is φ = 127292497920.

The previous prime is 668498485169. The next prime is 668498485229. The reversal of 668498485200 is 2584894866.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5263767537 + ... + 5263767663.

It is an arithmetic number, because the mean of its divisors is an integer number (1515458560).

Almost surely, 2^668498485200 is an apocalyptic number.

668498485200 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 668498485200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454840217600).

668498485200 is an abundant number, since it is smaller than the sum of its proper divisors (2241181950000).

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

668498485200 is a wasteful number, since it uses less digits than its factorization.

668498485200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 668498485200 in words is "six hundred sixty-eight billion, four hundred ninety-eight million, four hundred eighty-five thousand, two hundred".