16616149 has 8 divisors (see below), whose sum is σ = 18357120. Its totient is φ = 14913600.

The previous prime is 16616141. The next prime is 16616161. The reversal of 16616149 is 94161661.

It is a happy number.

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 16616149 - 2³ = 16616141 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 (16616141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8692 + ... + 10429.

It is an arithmetic number, because the mean of its divisors is an integer number (2294640).

Almost surely, 2^16616149 is an apocalyptic number.

It is an amenable number.

16616149 is a deficient number, since it is larger than the sum of its proper divisors (1740971).

16616149 is a wasteful number, since it uses less digits than its factorization.

16616149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19211.

The product of its digits is 7776, while the sum is 34.

The square root of 16616149 is about 4076.2910838163. The cubic root of 16616149 is about 255.1781351750.

The spelling of 16616149 in words is "sixteen million, six hundred sixteen thousand, one hundred forty-nine".