163676161 has 8 divisors (see below), whose sum is σ = 178706304. Its totient is φ = 148671120.

The previous prime is 163676143. The next prime is 163676171. The reversal of 163676161 is 161676361.

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 163676161 - 2⁷ = 163676033 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163676161.

It is not an unprimeable number, because it can be changed into a prime (163676101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8991 + ... + 20203.

It is an arithmetic number, because the mean of its divisors is an integer number (22338288).

It is a Proth number, since it is equal to 4995 ⋅ 2¹⁵ + 1 and 4995 < 2¹⁵.

Almost surely, 2^163676161 is an apocalyptic number.

163676161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163676161 is a deficient number, since it is larger than the sum of its proper divisors (15030143).

163676161 is a wasteful number, since it uses less digits than its factorization.

163676161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12551.

The product of its digits is 27216, while the sum is 37.

The square root of 163676161 is about 12793.5984382815. The cubic root of 163676161 is about 547.0098457833.

The spelling of 163676161 in words is "one hundred sixty-three million, six hundred seventy-six thousand, one hundred sixty-one".