167655161 has 4 divisors (see below), whose sum is σ = 173063424. Its totient is φ = 162246900.

The previous prime is 167655133. The next prime is 167655179. The reversal of 167655161 is 161556761.

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-167655161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (167655361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2704085 + ... + 2704146.

It is an arithmetic number, because the mean of its divisors is an integer number (43265856).

Almost surely, 2^167655161 is an apocalyptic number.

It is an amenable number.

167655161 is a deficient number, since it is larger than the sum of its proper divisors (5408263).

167655161 is an equidigital number, since it uses as much as digits as its factorization.

167655161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408262.

The product of its digits is 37800, while the sum is 38.

The square root of 167655161 is about 12948.1721103791. The cubic root of 167655161 is about 551.4070430782.

The spelling of 167655161 in words is "one hundred sixty-seven million, six hundred fifty-five thousand, one hundred sixty-one".