16543550323 has 16 divisors (see below), whose sum is σ = 17850062880. Its totient is φ = 15275404800.

The previous prime is 16543550293. The next prime is 16543550333. The reversal of 16543550323 is 32305534561.

It is a cyclic number.

It is not a de Polignac number, because 16543550323 - 2¹³ = 16543542131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16543550333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382888 + ... + 423898.

It is an arithmetic number, because the mean of its divisors is an integer number (1115628930).

Almost surely, 2^16543550323 is an apocalyptic number.

16543550323 is a deficient number, since it is larger than the sum of its proper divisors (1306512557).

16543550323 is a wasteful number, since it uses less digits than its factorization.

16543550323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41478.

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 16543550323 in words is "sixteen billion, five hundred forty-three million, five hundred fifty thousand, three hundred twenty-three".