16369648543 has 4 divisors (see below), whose sum is σ = 16750338088. Its totient is φ = 15988959000.

The previous prime is 16369648541. The next prime is 16369648567. The reversal of 16369648543 is 34584696361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34584696361 = 859 ⋅40261579.

It is a cyclic number.

It is not a de Polignac number, because 16369648543 - 2¹ = 16369648541 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 (16369648541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190344708 + ... + 190344793.

It is an arithmetic number, because the mean of its divisors is an integer number (4187584522).

Almost surely, 2^16369648543 is an apocalyptic number.

16369648543 is a deficient number, since it is larger than the sum of its proper divisors (380689545).

16369648543 is an equidigital number, since it uses as much as digits as its factorization.

16369648543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380689544.

The product of its digits is 11197440, while the sum is 55.

The spelling of 16369648543 in words is "sixteen billion, three hundred sixty-nine million, six hundred forty-eight thousand, five hundred forty-three".