16023355509 has 32 divisors (see below), whose sum is σ = 25075604736. Its totient is φ = 8910190080.

The previous prime is 16023355507. The next prime is 16023355549. The reversal of 16023355509 is 90555332061.

It is not a de Polignac number, because 16023355509 - 2¹ = 16023355507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16023355501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318379 + ... + 365255.

It is an arithmetic number, because the mean of its divisors is an integer number (783612648).

Almost surely, 2^16023355509 is an apocalyptic number.

It is an amenable number.

16023355509 is a deficient number, since it is larger than the sum of its proper divisors (9052249227).

16023355509 is a wasteful number, since it uses less digits than its factorization.

16023355509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47325.

The product of its (nonzero) digits is 121500, while the sum is 39.

The spelling of 16023355509 in words is "sixteen billion, twenty-three million, three hundred fifty-five thousand, five hundred nine".