160856666 has 8 divisors (see below), whose sum is σ = 241749684. Its totient is φ = 80273440.

The previous prime is 160856659. The next prime is 160856711. The reversal of 160856666 is 666658061.

It can be written as a sum of positive squares in 2 ways, for example, as 150430225 + 10426441 = 12265^2 + 3229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 76145 + ... + 78228.

Almost surely, 2^160856666 is an apocalyptic number.

160856666 is a deficient number, since it is larger than the sum of its proper divisors (80893018).

160856666 is a wasteful number, since it uses less digits than its factorization.

160856666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154896.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 160856666 is about 12682.9281319418. The cubic root of 160856666 is about 543.8506947704.

The spelling of 160856666 in words is "one hundred sixty million, eight hundred fifty-six thousand, six hundred sixty-six".