161390055167 has 8 divisors (see below), whose sum is σ = 179807876352. Its totient is φ = 143596567000.

The previous prime is 161390055163. The next prime is 161390055181. The reversal of 161390055167 is 761550093161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161390055167 - 2² = 161390055163 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 (161390055163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156082709 + ... + 156083742.

It is an arithmetic number, because the mean of its divisors is an integer number (22475984544).

Almost surely, 2^161390055167 is an apocalyptic number.

161390055167 is a deficient number, since it is larger than the sum of its proper divisors (18417821185).

161390055167 is a wasteful number, since it uses less digits than its factorization.

161390055167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312166509.

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 161390055167 in words is "one hundred sixty-one billion, three hundred ninety million, fifty-five thousand, one hundred sixty-seven".