671111021606 has 32 divisors (see below), whose sum is σ = 1072885953600. Its totient is φ = 313746656256.

The previous prime is 671111021593. The next prime is 671111021627. The reversal of 671111021606 is 606120111176.

It is a Curzon number.

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, 4342250 + ... + 4494146.

It is an arithmetic number, because the mean of its divisors is an integer number (33527686050).

Almost surely, 2^671111021606 is an apocalyptic number.

671111021606 is a deficient number, since it is larger than the sum of its proper divisors (401774931994).

671111021606 is a wasteful number, since it uses less digits than its factorization.

671111021606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152768.

The product of its (nonzero) digits is 3024, while the sum is 32.

The spelling of 671111021606 in words is "six hundred seventy-one billion, one hundred eleven million, twenty-one thousand, six hundred six".