160706561 has 4 divisors (see below), whose sum is σ = 160939824. Its totient is φ = 160473300.

The previous prime is 160706537. The next prime is 160706563. The reversal of 160706561 is 165607061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160706561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (160706563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115595 + ... + 116976.

It is an arithmetic number, because the mean of its divisors is an integer number (40234956).

Almost surely, 2^160706561 is an apocalyptic number.

It is an amenable number.

160706561 is a deficient number, since it is larger than the sum of its proper divisors (233263).

160706561 is an equidigital number, since it uses as much as digits as its factorization.

160706561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233262.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 160706561 is about 12677.0091504266. The cubic root of 160706561 is about 543.6814755591.

The spelling of 160706561 in words is "one hundred sixty million, seven hundred six thousand, five hundred sixty-one".