16353553439 has 4 divisors (see below), whose sum is σ = 16375683480. Its totient is φ = 16331423400.

The previous prime is 16353553409. The next prime is 16353553453. The reversal of 16353553439 is 93435535361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16353553439 - 2²⁰ = 16352504863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16353553393 and 16353553402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16353553409) 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 3 ways as a sum of consecutive naturals, for example, 11063912 + ... + 11065389.

It is an arithmetic number, because the mean of its divisors is an integer number (4093920870).

Almost surely, 2^16353553439 is an apocalyptic number.

16353553439 is a deficient number, since it is larger than the sum of its proper divisors (22130041).

16353553439 is an equidigital number, since it uses as much as digits as its factorization.

16353553439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22130040.

The product of its digits is 2187000, while the sum is 47.

The spelling of 16353553439 in words is "sixteen billion, three hundred fifty-three million, five hundred fifty-three thousand, four hundred thirty-nine".