160308661 has 4 divisors (see below), whose sum is σ = 160340032. Its totient is φ = 160277292.

The previous prime is 160308649. The next prime is 160308677. The reversal of 160308661 is 166803061.

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-160308661 is a prime.

It is a super-2 number, since 2×160308661² = 51397733583225842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160308611) 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, 6045 + ... + 18898.

It is an arithmetic number, because the mean of its divisors is an integer number (40085008).

Almost surely, 2^160308661 is an apocalyptic number.

It is an amenable number.

160308661 is a deficient number, since it is larger than the sum of its proper divisors (31371).

160308661 is an equidigital number, since it uses as much as digits as its factorization.

160308661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31370.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 160308661 is about 12661.3056593702. The cubic root of 160308661 is about 543.2323969307.

The spelling of 160308661 in words is "one hundred sixty million, three hundred eight thousand, six hundred sixty-one".