160511661 has 12 divisors (see below), whose sum is σ = 238116892. Its totient is φ = 104115456.

The previous prime is 160511651. The next prime is 160511669. The reversal of 160511661 is 166115061.

160511661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 142922025 + 17589636 = 11955^2 + 4194^2 .

It is not a de Polignac number, because 160511661 - 2⁵ = 160511629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160511669) 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, 240676 + ... + 241341.

Almost surely, 2^160511661 is an apocalyptic number.

It is an amenable number.

160511661 is a deficient number, since it is larger than the sum of its proper divisors (77605231).

160511661 is a wasteful number, since it uses less digits than its factorization.

160511661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482060 (or 482057 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 160511661 is about 12669.3196739209. The cubic root of 160511661 is about 543.4615998962.

The spelling of 160511661 in words is "one hundred sixty million, five hundred eleven thousand, six hundred sixty-one".