671321761016 has 16 divisors (see below), whose sum is σ = 1324977160200. Its totient is φ = 317994518304.

The previous prime is 671321761007. The next prime is 671321761043. The reversal of 671321761016 is 610167123176.

671321761016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2208295115 + ... + 2208295418.

Almost surely, 2^671321761016 is an apocalyptic number.

It is an amenable number.

671321761016 is a deficient number, since it is larger than the sum of its proper divisors (653655399184).

671321761016 is a wasteful number, since it uses less digits than its factorization.

671321761016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416590558 (or 4416590554 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 671321761016 in words is "six hundred seventy-one billion, three hundred twenty-one million, seven hundred sixty-one thousand, sixteen".