171160661 has 4 divisors (see below), whose sum is σ = 195612192. Its totient is φ = 146709132.

The previous prime is 171160657. The next prime is 171160723. The reversal of 171160661 is 166061171.

171160661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 171160661 - 2² = 171160657 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 (171160601) 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, 12225755 + ... + 12225768.

It is an arithmetic number, because the mean of its divisors is an integer number (48903048).

Almost surely, 2^171160661 is an apocalyptic number.

It is an amenable number.

171160661 is a deficient number, since it is larger than the sum of its proper divisors (24451531).

171160661 is an equidigital number, since it uses as much as digits as its factorization.

171160661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24451530.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 171160661 is about 13082.8384152675. The cubic root of 171160661 is about 555.2236860426.

The spelling of 171160661 in words is "one hundred seventy-one million, one hundred sixty thousand, six hundred sixty-one".