16116309 has 12 divisors (see below), whose sum is σ = 25395552. Its totient is φ = 9767400.

The previous prime is 16116251. The next prime is 16116329. The reversal of 16116309 is 90361161.

16116309 is a `hidden beast` number, since 16 + 11 + 630 + 9 = 666.

It is not a de Polignac number, because 16116309 - 2⁷ = 16116181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16116329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81297 + ... + 81494.

It is an arithmetic number, because the mean of its divisors is an integer number (2116296).

Almost surely, 2^16116309 is an apocalyptic number.

It is an amenable number.

16116309 is a deficient number, since it is larger than the sum of its proper divisors (9279243).

16116309 is a wasteful number, since it uses less digits than its factorization.

16116309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162808 (or 162805 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 16116309 is about 4014.5122991467. The cubic root of 16116309 is about 252.5933204057.

The spelling of 16116309 in words is "sixteen million, one hundred sixteen thousand, three hundred nine".