16440223542047 has 2 divisors, whose sum is σ = 16440223542048. Its totient is φ = 16440223542046.

The previous prime is 16440223542031. The next prime is 16440223542089. The reversal of 16440223542047 is 74024532204461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16440223542047 - 2⁴ = 16440223542031 is a prime.

It is a super-3 number, since 3×16440223542047³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 16440223541989 and 16440223542007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16440223502047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220111771023 + 8220111771024.

It is an arithmetic number, because the mean of its divisors is an integer number (8220111771024).

Almost surely, 2^{16440223542047} is an apocalyptic number.

16440223542047 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440223542047 is an equidigital number, since it uses as much as digits as its factorization.

16440223542047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 44.

The spelling of 16440223542047 in words is "sixteen trillion, four hundred forty billion, two hundred twenty-three million, five hundred forty-two thousand, forty-seven".