160155561 has 12 divisors (see below), whose sum is σ = 217113936. Its totient is φ = 105012720.

The previous prime is 160155539. The next prime is 160155563. The reversal of 160155561 is 165551061.

It is not a de Polignac number, because 160155561 - 2⁵ = 160155529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (160155563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3990 + ... + 18336.

It is an arithmetic number, because the mean of its divisors is an integer number (18092828).

Almost surely, 2^160155561 is an apocalyptic number.

It is an amenable number.

160155561 is a deficient number, since it is larger than the sum of its proper divisors (56958375).

160155561 is an equidigital number, since it uses as much as digits as its factorization.

160155561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14472 (or 14411 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 160155561 is about 12655.2582352159. The cubic root of 160155561 is about 543.0594069628.

Subtracting from 160155561 its product of nonzero digits (4500), we obtain a palindrome (160151061).

The spelling of 160155561 in words is "one hundred sixty million, one hundred fifty-five thousand, five hundred sixty-one".