16436145999 has 128 divisors (see below), whose sum is σ = 28327936000. Its totient is φ = 8420630400.

The previous prime is 16436145991. The next prime is 16436146003. The reversal of 16436145999 is 99954163461.

It is a happy number.

It is not a de Polignac number, because 16436145999 - 2³ = 16436145991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16436145991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 108848574 + ... + 108848724.

It is an arithmetic number, because the mean of its divisors is an integer number (221312000).

Almost surely, 2^16436145999 is an apocalyptic number.

16436145999 is a deficient number, since it is larger than the sum of its proper divisors (11891790001).

16436145999 is a wasteful number, since it uses less digits than its factorization.

16436145999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 356 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 57.

The spelling of 16436145999 in words is "sixteen billion, four hundred thirty-six million, one hundred forty-five thousand, nine hundred ninety-nine".