16442664001723 has 2 divisors, whose sum is σ = 16442664001724. Its totient is φ = 16442664001722.

The previous prime is 16442664001669. The next prime is 16442664001763. The reversal of 16442664001723 is 32710046624461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16442664001723 - 2¹³ = 16442663993531 is a prime.

It is a super-3 number, since 3×16442664001723³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (16442664001763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221332000861 + 8221332000862.

It is an arithmetic number, because the mean of its divisors is an integer number (8221332000862).

Almost surely, 2^{16442664001723} is an apocalyptic number.

16442664001723 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442664001723 is an equidigital number, since it uses as much as digits as its factorization.

16442664001723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 46.

The spelling of 16442664001723 in words is "sixteen trillion, four hundred forty-two billion, six hundred sixty-four million, one thousand, seven hundred twenty-three".