16550166 has 8 divisors (see below), whose sum is σ = 33100344. Its totient is φ = 5516720.

The previous prime is 16550153. The next prime is 16550189. The reversal of 16550166 is 66105561.

16550166 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

16550166 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, 1379175 + ... + 1379186.

It is an arithmetic number, because the mean of its divisors is an integer number (4137543).

Almost surely, 2^16550166 is an apocalyptic number.

16550166 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.

16550166 is a wasteful number, since it uses less digits than its factorization.

16550166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758366.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 16550166 is about 4068.1895236088. The cubic root of 16550166 is about 254.8399149008.

The spelling of 16550166 in words is "sixteen million, five hundred fifty thousand, one hundred sixty-six".