1681600168 has 32 divisors (see below), whose sum is σ = 3322771200. Its totient is φ = 795629952.

The previous prime is 1681600163. The next prime is 1681600189. The reversal of 1681600168 is 8610061861.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1681600163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136521 + ... + 148327.

It is an arithmetic number, because the mean of its divisors is an integer number (103836600).

Almost surely, 2^1681600168 is an apocalyptic number.

It is an amenable number.

1681600168 is a deficient number, since it is larger than the sum of its proper divisors (1641171032).

1681600168 is a wasteful number, since it uses less digits than its factorization.

1681600168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12769 (or 12765 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 1681600168 is about 41007.3184687807. The cubic root of 1681600168 is about 1189.1617022801.

The spelling of 1681600168 in words is "one billion, six hundred eighty-one million, six hundred thousand, one hundred sixty-eight".