1683500166671 has 4 divisors (see below), whose sum is σ = 1686873915000. Its totient is φ = 1680126418344.

The previous prime is 1683500166641. The next prime is 1683500166731. The reversal of 1683500166671 is 1766610053861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1683500166671 - 2¹⁰ = 1683500165647 is a prime.

It is a super-2 number, since 2×1683500166671² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683500166631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1686873416 + ... + 1686874413.

It is an arithmetic number, because the mean of its divisors is an integer number (421718478750).

Almost surely, 2^{1683500166671} is an apocalyptic number.

1683500166671 is a deficient number, since it is larger than the sum of its proper divisors (3373748329).

1683500166671 is an equidigital number, since it uses as much as digits as its factorization.

1683500166671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373748328.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 1683500166671 in words is "one trillion, six hundred eighty-three billion, five hundred million, one hundred sixty-six thousand, six hundred seventy-one".