16442040023 has 2 divisors, whose sum is σ = 16442040024. Its totient is φ = 16442040022.

The previous prime is 16442040019. The next prime is 16442040037. The reversal of 16442040023 is 32004024461.

It is a weak prime.

It is an emirp because it is prime and its reverse (32004024461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16442040023 - 2² = 16442040019 is a prime.

It is a super-3 number, since 3×16442040023³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16442039974 and 16442040001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16442840023) 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 as a sum of consecutive naturals, namely, 8221020011 + 8221020012.

It is an arithmetic number, because the mean of its divisors is an integer number (8221020012).

Almost surely, 2^16442040023 is an apocalyptic number.

16442040023 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442040023 is an equidigital number, since it uses as much as digits as its factorization.

16442040023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 16442040023 its reverse (32004024461), we get a palindrome (48446064484).

The spelling of 16442040023 in words is "sixteen billion, four hundred forty-two million, forty thousand, twenty-three".