12016641543 has 16 divisors (see below), whose sum is σ = 16098483456. Its totient is φ = 7973032320.

The previous prime is 12016641541. The next prime is 12016641551. The reversal of 12016641543 is 34514661021.

It is not a de Polignac number, because 12016641543 - 2¹ = 12016641541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12016641541) 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, 578646 + ... + 599052.

It is an arithmetic number, because the mean of its divisors is an integer number (1006155216).

Almost surely, 2^12016641543 is an apocalyptic number.

12016641543 is a deficient number, since it is larger than the sum of its proper divisors (4081841913).

12016641543 is a wasteful number, since it uses less digits than its factorization.

12016641543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21334.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 12016641543 in words is "twelve billion, sixteen million, six hundred forty-one thousand, five hundred forty-three".