160506800689 has 9 divisors (see below), whose sum is σ = 161541011257. Its totient is φ = 159479177044.

The previous prime is 160506800639. The next prime is 160506800749. The reversal of 160506800689 is 986008605061.

The square root of 160506800689 is 400633.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-160506800689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160506800609) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 66904512 + ... + 66906910.

Almost surely, 2^160506800689 is an apocalyptic number.

160506800689 is the 400633-rd square number.

160506800689 is the 200317-th centered octagonal number.

It is an amenable number.

160506800689 is a deficient number, since it is larger than the sum of its proper divisors (1034210568).

160506800689 is an frugal number, since it uses more digits than its factorization.

160506800689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132 (or 2566 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

Multiplying 160506800689 by its sum of digits (49), we get a square (7864833233761 = 2804431²).

The spelling of 160506800689 in words is "one hundred sixty billion, five hundred six million, eight hundred thousand, six hundred eighty-nine".