671004709028180 has 48 divisors (see below), whose sum is σ = 1409402911412160. Its totient is φ = 268346072467968.

The previous prime is 671004709028141. The next prime is 671004709028279. The reversal of 671004709028180 is 81820907400176.

It is a happy number.

It is a super-2 number, since 2×671004709028180² (a number of 30 digits) contains 22 as substring.

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, 6771688076 + ... + 6771787164.

It is an arithmetic number, because the mean of its divisors is an integer number (29362560654420).

Almost surely, 2^{671004709028180} is an apocalyptic number.

It is an amenable number.

671004709028180 is an abundant number, since it is smaller than the sum of its proper divisors (738398202383980).

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

671004709028180 is a wasteful number, since it uses less digits than its factorization.

671004709028180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166088 (or 166086 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 671004709028180 in words is "six hundred seventy-one trillion, four billion, seven hundred nine million, twenty-eight thousand, one hundred eighty".