16123344309 has 24 divisors (see below), whose sum is σ = 23487506432. Its totient is φ = 10657513440.

The previous prime is 16123344299. The next prime is 16123344317. The reversal of 16123344309 is 90344332161.

16123344309 is a `hidden beast` number, since 1 + 6 + 1 + 2 + 3 + 344 + 309 = 666.

16123344309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16123344309 - 2⁸ = 16123344053 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 (16123344329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2343144 + ... + 2350014.

Almost surely, 2^16123344309 is an apocalyptic number.

It is an amenable number.

16123344309 is a deficient number, since it is larger than the sum of its proper divisors (7364162123).

16123344309 is a wasteful number, since it uses less digits than its factorization.

16123344309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9057 (or 9054 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 16123344309 in words is "sixteen billion, one hundred twenty-three million, three hundred forty-four thousand, three hundred nine".