1600643168668 has 6 divisors (see below), whose sum is σ = 2801125545176. Its totient is φ = 800321584332.

The previous prime is 1600643168611. The next prime is 1600643168689. The reversal of 1600643168668 is 8668613460061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200080396080 + ... + 200080396087.

Almost surely, 2^{1600643168668} is an apocalyptic number.

It is an amenable number.

1600643168668 is a deficient number, since it is larger than the sum of its proper divisors (1200482376508).

1600643168668 is a wasteful number, since it uses less digits than its factorization.

1600643168668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400160792171 (or 400160792169 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 1600643168668 in words is "one trillion, six hundred billion, six hundred forty-three million, one hundred sixty-eight thousand, six hundred sixty-eight".