16442020305619 has 2 divisors, whose sum is σ = 16442020305620. Its totient is φ = 16442020305618.

The previous prime is 16442020305617. The next prime is 16442020305647. The reversal of 16442020305619 is 91650302024461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16442020305619 - 2¹ = 16442020305617 is a prime.

It is a super-3 number, since 3×16442020305619³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 16442020305617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16442020305617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221010152809 + 8221010152810.

It is an arithmetic number, because the mean of its divisors is an integer number (8221010152810).

Almost surely, 2^{16442020305619} is an apocalyptic number.

16442020305619 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442020305619 is an equidigital number, since it uses as much as digits as its factorization.

16442020305619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 16442020305619 in words is "sixteen trillion, four hundred forty-two billion, twenty million, three hundred five thousand, six hundred nineteen".