16420447453 has 8 divisors (see below), whose sum is σ = 16804041408. Its totient is φ = 16036931904.

The previous prime is 16420447451. The next prime is 16420447457. The reversal of 16420447453 is 35474402461.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16420447453 - 2¹ = 16420447451 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 (16420447451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778776 + ... + 799582.

It is an arithmetic number, because the mean of its divisors is an integer number (2100505176).

Almost surely, 2^16420447453 is an apocalyptic number.

It is an amenable number.

16420447453 is a deficient number, since it is larger than the sum of its proper divisors (383593955).

16420447453 is a wasteful number, since it uses less digits than its factorization.

16420447453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39203.

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 16420447453 in words is "sixteen billion, four hundred twenty million, four hundred forty-seven thousand, four hundred fifty-three".