671618435016 has 16 divisors (see below), whose sum is σ = 1679046087600. Its totient is φ = 223872811664.

The previous prime is 671618435009. The next prime is 671618435041. The reversal of 671618435016 is 610534816176.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13992050706 + ... + 13992050753.

It is an arithmetic number, because the mean of its divisors is an integer number (104940380475).

Almost surely, 2^671618435016 is an apocalyptic number.

It is an amenable number.

671618435016 is an abundant number, since it is smaller than the sum of its proper divisors (1007427652584).

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

671618435016 is a wasteful number, since it uses less digits than its factorization.

671618435016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27984101468 (or 27984101464 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 671618435016 in words is "six hundred seventy-one billion, six hundred eighteen million, four hundred thirty-five thousand, sixteen".