12236164543 has 4 divisors (see below), whose sum is σ = 12237569968. Its totient is φ = 12234759120.

The previous prime is 12236164487. The next prime is 12236164601. The reversal of 12236164543 is 34546163221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34546163221 = 48487 ⋅712483.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12236164543 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 (12236164043) 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, 689571 + ... + 707092.

It is an arithmetic number, because the mean of its divisors is an integer number (3059392492).

Almost surely, 2^12236164543 is an apocalyptic number.

12236164543 is a deficient number, since it is larger than the sum of its proper divisors (1405425).

12236164543 is an equidigital number, since it uses as much as digits as its factorization.

12236164543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405424.

The product of its digits is 103680, while the sum is 37.

The spelling of 12236164543 in words is "twelve billion, two hundred thirty-six million, one hundred sixty-four thousand, five hundred forty-three".