671165595760 has 240 divisors, whose sum is σ = 1817737764480. Its totient is φ = 227929766400.

The previous prime is 671165595743. The next prime is 671165595787. The reversal of 671165595760 is 67595561176.

It is a junction number, because it is equal to n+sod(n) for n = 671165595695 and 671165595704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84281539 + ... + 84289501.

It is an arithmetic number, because the mean of its divisors is an integer number (7573907352).

Almost surely, 2^671165595760 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 671165595760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908868882240).

671165595760 is an abundant number, since it is smaller than the sum of its proper divisors (1146572168720).

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

671165595760 is a wasteful number, since it uses less digits than its factorization.

671165595760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8148 (or 8071 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 58.

The spelling of 671165595760 in words is "six hundred seventy-one billion, one hundred sixty-five million, five hundred ninety-five thousand, seven hundred sixty".