671382089560 has 256 divisors, whose sum is σ = 1971068682240. Its totient is φ = 200068392960.

The previous prime is 671382089551. The next prime is 671382089561. The reversal of 671382089560 is 65980283176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671382089561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4094677 + ... + 4255483.

It is an arithmetic number, because the mean of its divisors is an integer number (7699487040).

Almost surely, 2^671382089560 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 671382089560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985534341120).

671382089560 is an abundant number, since it is smaller than the sum of its proper divisors (1299686592680).

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

671382089560 is a wasteful number, since it uses less digits than its factorization.

671382089560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160906 (or 160902 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 671382089560 in words is "six hundred seventy-one billion, three hundred eighty-two million, eighty-nine thousand, five hundred sixty".