1684675466556 has 12 divisors (see below), whose sum is σ = 3930909421992. Its totient is φ = 561558488848.

The previous prime is 1684675466549. The next prime is 1684675466587. The reversal of 1684675466556 is 6556645764861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1684675466556² (a number of 25 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 3 ways as a sum of consecutive naturals, for example, 70194811095 + ... + 70194811118.

It is an arithmetic number, because the mean of its divisors is an integer number (327575785166).

Almost surely, 2^{1684675466556} is an apocalyptic number.

It is an amenable number.

1684675466556 is an abundant number, since it is smaller than the sum of its proper divisors (2246233955436).

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

1684675466556 is a wasteful number, since it uses less digits than its factorization.

1684675466556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140389622220 (or 140389622218 counting only the distinct ones).

The product of its digits is 870912000, while the sum is 69.

The spelling of 1684675466556 in words is "one trillion, six hundred eighty-four billion, six hundred seventy-five million, four hundred sixty-six thousand, five hundred fifty-six".