671312051241040 has 80 divisors (see below), whose sum is σ = 1702713852017280. Its totient is φ = 244110265064960.

The previous prime is 671312051241001. The next prime is 671312051241061. The reversal of 671312051241040 is 40142150213176.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62503182 + ... + 72451858.

It is an arithmetic number, because the mean of its divisors is an integer number (21283923150216).

Almost surely, 2^{671312051241040} is an apocalyptic number.

It is an amenable number.

671312051241040 is an abundant number, since it is smaller than the sum of its proper divisors (1031401800776240).

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

671312051241040 is a wasteful number, since it uses less digits than its factorization.

671312051241040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10025380 (or 10025374 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 671312051241040 in words is "six hundred seventy-one trillion, three hundred twelve billion, fifty-one million, two hundred forty-one thousand, forty".