15440162043 has 4 divisors (see below), whose sum is σ = 20586882728. Its totient is φ = 10293441360.

The previous prime is 15440161981. The next prime is 15440162051. The reversal of 15440162043 is 34026104451.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15440162043 - 2¹⁰ = 15440161019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15440162043.

It is not an unprimeable number, because it can be changed into a prime (15440162743) 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 3 ways as a sum of consecutive naturals, for example, 2573360338 + ... + 2573360343.

It is an arithmetic number, because the mean of its divisors is an integer number (5146720682).

Almost surely, 2^15440162043 is an apocalyptic number.

15440162043 is a deficient number, since it is larger than the sum of its proper divisors (5146720685).

15440162043 is an equidigital number, since it uses as much as digits as its factorization.

15440162043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146720684.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 15440162043 its reverse (34026104451), we get a palindrome (49466266494).

The spelling of 15440162043 in words is "fifteen billion, four hundred forty million, one hundred sixty-two thousand, forty-three".