671328000000 has 1680 divisors, whose sum is σ = 2941963904880. Its totient is φ = 149299200000.

The previous prime is 671327999971. The next prime is 671328000073. The reversal of 671328000000 is 823176.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 139 ways as a sum of consecutive naturals, for example, 18143999982 + ... + 18144000018.

It is an arithmetic number, because the mean of its divisors is an integer number (1751168991).

Almost surely, 2^671328000000 is an apocalyptic number.

671328000000 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 671328000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1470981952440).

671328000000 is an abundant number, since it is smaller than the sum of its proper divisors (2270635904880).

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

671328000000 is an frugal number, since it uses more digits than its factorization.

671328000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 671328000000 its reverse (823176), we get a palindrome (671328823176).

The spelling of 671328000000 in words is "six hundred seventy-one billion, three hundred twenty-eight million", and thus it is an aban number.