671448960000 has 2640 divisors, whose sum is σ = 3163905101280. Its totient is φ = 139345920000.

The previous prime is 671448959959. The next prime is 671448960071. The reversal of 671448960000 is 69844176.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 11007359970 + ... + 11007360030.

It is an arithmetic number, because the mean of its divisors is an integer number (1198448902).

Almost surely, 2^671448960000 is an apocalyptic number.

671448960000 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 671448960000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581952550640).

671448960000 is an abundant number, since it is smaller than the sum of its proper divisors (2492456141280).

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

671448960000 is a wasteful number, since it uses less digits than its factorization.

671448960000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 671448960000 in words is "six hundred seventy-one billion, four hundred forty-eight million, nine hundred sixty thousand".