16201020543 has 8 divisors (see below), whose sum is σ = 21629454000. Its totient is φ = 10786633728.

The previous prime is 16201020497. The next prime is 16201020547. The reversal of 16201020543 is 34502010261.

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

It is not a de Polignac number, because 16201020543 - 2¹⁴ = 16201004159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16201020547) 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 7 ways as a sum of consecutive naturals, for example, 3508968 + ... + 3513581.

It is an arithmetic number, because the mean of its divisors is an integer number (2703681750).

Almost surely, 2^16201020543 is an apocalyptic number.

16201020543 is a deficient number, since it is larger than the sum of its proper divisors (5428433457).

16201020543 is an equidigital number, since it uses as much as digits as its factorization.

16201020543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7023321.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 16201020543 in words is "sixteen billion, two hundred one million, twenty thousand, five hundred forty-three".