1680160816976 has 20 divisors (see below), whose sum is σ = 3255332479092. Its totient is φ = 840075015936.

The previous prime is 1680160816967. The next prime is 1680160816979. The reversal of 1680160816976 is 6796180610861.

It can be written as a sum of positive squares in 2 ways, for example, as 370564387600 + 1309596429376 = 608740^2 + 1144376^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680160816979) 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, 3695450 + ... + 4125126.

Almost surely, 2^{1680160816976} is an apocalyptic number.

1680160816976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1680160816976 is a deficient number, since it is larger than the sum of its proper divisors (1575171662116).

1680160816976 is a wasteful number, since it uses less digits than its factorization.

1680160816976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674078 (or 674072 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 1680160816976 in words is "one trillion, six hundred eighty billion, one hundred sixty million, eight hundred sixteen thousand, nine hundred seventy-six".