671901360 has 80 divisors (see below), whose sum is σ = 2243127264. Its totient is φ = 165390336.

The previous prime is 671901341. The next prime is 671901361. The reversal of 671901360 is 63109176.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (671901361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104557 + ... + 110796.

Almost surely, 2^671901360 is an apocalyptic number.

671901360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671901360 is an abundant number, since it is smaller than the sum of its proper divisors (1571225904).

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

671901360 is a wasteful number, since it uses less digits than its factorization.

671901360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215382 (or 215376 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 671901360 is about 25921.0601635041. The cubic root of 671901360 is about 875.8609691575.

The spelling of 671901360 in words is "six hundred seventy-one million, nine hundred one thousand, three hundred sixty".