16600161 has 8 divisors (see below), whose sum is σ = 22731904. Its totient is φ = 10767600.

The previous prime is 16600147. The next prime is 16600163. The reversal of 16600161 is 16100661.

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

It is not a de Polignac number, because 16600161 - 2¹⁵ = 16567393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16600163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74665 + ... + 74886.

It is an arithmetic number, because the mean of its divisors is an integer number (2841488).

Almost surely, 2^16600161 is an apocalyptic number.

It is an amenable number.

16600161 is a deficient number, since it is larger than the sum of its proper divisors (6131743).

16600161 is a wasteful number, since it uses less digits than its factorization.

16600161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149591.

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

The square root of 16600161 is about 4074.3295153927. The cubic root of 16600161 is about 255.0962650769.

Subtracting from 16600161 its reverse (16100661), we obtain a triangular number (499500 = T₉₉₉).

It can be divided in two parts, 16600 and 161, that added together give a palindrome (16761).

The spelling of 16600161 in words is "sixteen million, six hundred thousand, one hundred sixty-one".