16453735509 has 8 divisors (see below), whose sum is σ = 22297958752. Its totient is φ = 10789334640.

The previous prime is 16453735499. The next prime is 16453735547. The reversal of 16453735509 is 90553735461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16453735509 - 2⁵ = 16453735477 is a prime.

It is a super-3 number, since 3×16453735509³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16453735709) 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, 44955379 + ... + 44955744.

It is an arithmetic number, because the mean of its divisors is an integer number (2787244844).

Almost surely, 2^16453735509 is an apocalyptic number.

It is an amenable number.

16453735509 is a deficient number, since it is larger than the sum of its proper divisors (5844223243).

16453735509 is an equidigital number, since it uses as much as digits as its factorization.

16453735509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89911187.

The product of its (nonzero) digits is 1701000, while the sum is 48.

Subtracting from 16453735509 its sum of digits (48), we obtain a palindrome (16453735461).

The spelling of 16453735509 in words is "sixteen billion, four hundred fifty-three million, seven hundred thirty-five thousand, five hundred nine".