671551112 has 16 divisors (see below), whose sum is σ = 1259433360. Its totient is φ = 335702224.

The previous prime is 671551099. The next prime is 671551151. The reversal of 671551112 is 211155176.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66203 + ... + 75669.

It is an arithmetic number, because the mean of its divisors is an integer number (78714585).

Almost surely, 2^671551112 is an apocalyptic number.

It is an amenable number.

671551112 is a deficient number, since it is larger than the sum of its proper divisors (587882248).

671551112 is a wasteful number, since it uses less digits than its factorization.

671551112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18340 (or 18336 counting only the distinct ones).

The product of its digits is 2100, while the sum is 29.

The square root of 671551112 is about 25914.3032319991. The cubic root of 671551112 is about 875.7087534254.

The spelling of 671551112 in words is "six hundred seventy-one million, five hundred fifty-one thousand, one hundred twelve".