160730728868 has 12 divisors (see below), whose sum is σ = 281402105292. Its totient is φ = 80330127360.

The previous prime is 160730728853. The next prime is 160730728889. The reversal of 160730728868 is 868827037061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119313594724 + 41417134144 = 345418^2 + 203512^2 .

It is a super-2 number, since 2×160730728868² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8799005 + ... + 8817252.

It is an arithmetic number, because the mean of its divisors is an integer number (23450175441).

Almost surely, 2^160730728868 is an apocalyptic number.

It is an amenable number.

160730728868 is a deficient number, since it is larger than the sum of its proper divisors (120671376424).

160730728868 is a wasteful number, since it uses less digits than its factorization.

160730728868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17618542 (or 17618540 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 160730728868 in words is "one hundred sixty billion, seven hundred thirty million, seven hundred twenty-eight thousand, eight hundred sixty-eight".