671580960 has 96 divisors (see below), whose sum is σ = 2123537472. Its totient is φ = 178406400.

The previous prime is 671580929. The next prime is 671580961. The reversal of 671580960 is 69085176.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (671580961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130435 + ... + 135485.

It is an arithmetic number, because the mean of its divisors is an integer number (22120182).

Almost surely, 2^671580960 is an apocalyptic number.

671580960 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 671580960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061768736).

671580960 is an abundant number, since it is smaller than the sum of its proper divisors (1451956512).

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

671580960 is a wasteful number, since it uses less digits than its factorization.

671580960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5346 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 671580960 is about 25914.8791237775. The cubic root of 671580960 is about 875.7217272543.

The spelling of 671580960 in words is "six hundred seventy-one million, five hundred eighty thousand, nine hundred sixty".