671150720000 has 220 divisors, whose sum is σ = 1680081186300. Its totient is φ = 267890688000.

The previous prime is 671150719973. The next prime is 671150720011. The reversal of 671150720000 is 27051176.

It can be written as a sum of positive squares in 10 ways, for example, as 343527276544 + 327623443456 = 586112^2 + 572384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 433279226 + ... + 433280774.

It is an arithmetic number, because the mean of its divisors is an integer number (7636732665).

Almost surely, 2^671150720000 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 671150720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840040593150).

671150720000 is an abundant number, since it is smaller than the sum of its proper divisors (1008930466300).

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

671150720000 is an equidigital number, since it uses as much as digits as its factorization.

671150720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266 (or 2233 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 29.

Adding to 671150720000 its reverse (27051176), we get a palindrome (671177771176).

The spelling of 671150720000 in words is "six hundred seventy-one billion, one hundred fifty million, seven hundred twenty thousand".