16234636443 has 8 divisors (see below), whose sum is σ = 21649246800. Its totient is φ = 10821558528.

The previous prime is 16234636373. The next prime is 16234636487. The reversal of 16234636443 is 34463643261.

It is a happy number.

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

It is not a de Polignac number, because 16234636443 - 2¹⁰ = 16234635419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16234636395 and 16234636404.

It is not an unprimeable number, because it can be changed into a prime (16234636643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358158 + ... + 400931.

It is an arithmetic number, because the mean of its divisors is an integer number (2706155850).

Almost surely, 2^16234636443 is an apocalyptic number.

16234636443 is a deficient number, since it is larger than the sum of its proper divisors (5414610357).

16234636443 is an equidigital number, since it uses as much as digits as its factorization.

16234636443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766221.

The product of its digits is 746496, while the sum is 42.

The spelling of 16234636443 in words is "sixteen billion, two hundred thirty-four million, six hundred thirty-six thousand, four hundred forty-three".