160661173 has 4 divisors (see below), whose sum is σ = 160688160. Its totient is φ = 160634188.

The previous prime is 160661167. The next prime is 160661209. The reversal of 160661173 is 371166061.

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 not a de Polignac number, because 160661173 - 2¹³ = 160652981 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 (160661153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 17926.

It is an arithmetic number, because the mean of its divisors is an integer number (40172040).

Almost surely, 2^160661173 is an apocalyptic number.

It is an amenable number.

160661173 is a deficient number, since it is larger than the sum of its proper divisors (26987).

160661173 is an equidigital number, since it uses as much as digits as its factorization.

160661173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26986.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 160661173 is about 12675.2188541263. The cubic root of 160661173 is about 543.6302871526.

The spelling of 160661173 in words is "one hundred sixty million, six hundred sixty-one thousand, one hundred seventy-three".