161000000166 has 8 divisors (see below), whose sum is σ = 322000000344. Its totient is φ = 53666666720.

The previous prime is 161000000093. The next prime is 161000000177. The reversal of 161000000166 is 661000000161.

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

161000000166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13416666675 + ... + 13416666686.

It is an arithmetic number, because the mean of its divisors is an integer number (40250000043).

Almost surely, 2^161000000166 is an apocalyptic number.

161000000166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161000000166 is a wasteful number, since it uses less digits than its factorization.

161000000166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26833333366.

The product of its (nonzero) digits is 216, while the sum is 21.

The spelling of 161000000166 in words is "one hundred sixty-one billion, one hundred sixty-six", and thus it is an aban number.