20161363443 has 8 divisors (see below), whose sum is σ = 28949650128. Its totient is φ = 12406992864.

The previous prime is 20161363427. The next prime is 20161363459. The reversal of 20161363443 is 34436316102.

It is an interprime number because it is at equal distance from previous prime (20161363427) and next prime (20161363459).

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

It is not a de Polignac number, because 20161363443 - 2⁴ = 20161363427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20161363043) 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, 258478980 + ... + 258479057.

It is an arithmetic number, because the mean of its divisors is an integer number (3618706266).

Almost surely, 2^20161363443 is an apocalyptic number.

20161363443 is a deficient number, since it is larger than the sum of its proper divisors (8788286685).

20161363443 is a wasteful number, since it uses less digits than its factorization.

20161363443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516958053.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 20161363443 its reverse (34436316102), we get a palindrome (54597679545).

The spelling of 20161363443 in words is "twenty billion, one hundred sixty-one million, three hundred sixty-three thousand, four hundred forty-three".