671066270720 has 176 divisors, whose sum is σ = 1666587616128. Its totient is φ = 259109683200.

The previous prime is 671066270713. The next prime is 671066270729. The reversal of 671066270720 is 27072660176.

It is not an unprimeable number, because it can be changed into a prime (671066270729) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17547620 + ... + 17585820.

Almost surely, 2^671066270720 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 671066270720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833293808064).

671066270720 is an abundant number, since it is smaller than the sum of its proper divisors (995521345408).

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

671066270720 is a wasteful number, since it uses less digits than its factorization.

671066270720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38346 (or 38328 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 44.

The spelling of 671066270720 in words is "six hundred seventy-one billion, sixty-six million, two hundred seventy thousand, seven hundred twenty".