16356544453 has 32 divisors (see below), whose sum is σ = 17533163520. Its totient is φ = 15238056960.

The previous prime is 16356544429. The next prime is 16356544487. The reversal of 16356544453 is 35444565361.

It is a cyclic number.

It is not a de Polignac number, because 16356544453 - 2⁹ = 16356543941 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 (16356544403) 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, 15046876 + ... + 15047962.

It is an arithmetic number, because the mean of its divisors is an integer number (547911360).

Almost surely, 2^16356544453 is an apocalyptic number.

It is an amenable number.

16356544453 is a deficient number, since it is larger than the sum of its proper divisors (1176619067).

16356544453 is a wasteful number, since it uses less digits than its factorization.

16356544453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357.

The product of its digits is 2592000, while the sum is 46.

The spelling of 16356544453 in words is "sixteen billion, three hundred fifty-six million, five hundred forty-four thousand, four hundred fifty-three".