2044321566443 has 4 divisors (see below), whose sum is σ = 2201577071568. Its totient is φ = 1887066061320.

The previous prime is 2044321566403. The next prime is 2044321566479. The reversal of 2044321566443 is 3446651234402.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2044321566443 is a prime.

It is a super-2 number, since 2×2044321566443² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2044321566394 and 2044321566403.

It is not an unprimeable number, because it can be changed into a prime (2044321566403) 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, 78627752543 + ... + 78627752568.

It is an arithmetic number, because the mean of its divisors is an integer number (550394267892).

Almost surely, 2^{2044321566443} is an apocalyptic number.

2044321566443 is a deficient number, since it is larger than the sum of its proper divisors (157255505125).

2044321566443 is a wasteful number, since it uses less digits than its factorization.

2044321566443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157255505124.

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 2044321566443 in words is "two trillion, forty-four billion, three hundred twenty-one million, five hundred sixty-six thousand, four hundred forty-three".