44221520143543 has 2 divisors, whose sum is σ = 44221520143544. Its totient is φ = 44221520143542.

The previous prime is 44221520143513. The next prime is 44221520143547. The reversal of 44221520143543 is 34534102512244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44221520143543 - 2⁴¹ = 42022496887991 is a prime.

It is a super-2 number, since 2×44221520143543² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44221520143496 and 44221520143505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44221520143547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22110760071771 + 22110760071772.

It is an arithmetic number, because the mean of its divisors is an integer number (22110760071772).

Almost surely, 2^{44221520143543} is an apocalyptic number.

44221520143543 is a deficient number, since it is larger than the sum of its proper divisors (1).

44221520143543 is an equidigital number, since it uses as much as digits as its factorization.

44221520143543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 44221520143543 its reverse (34534102512244), we get a palindrome (78755622655787).

The spelling of 44221520143543 in words is "forty-four trillion, two hundred twenty-one billion, five hundred twenty million, one hundred forty-three thousand, five hundred forty-three".