16442345771123 has 2 divisors, whose sum is σ = 16442345771124. Its totient is φ = 16442345771122.

The previous prime is 16442345771029. The next prime is 16442345771153. The reversal of 16442345771123 is 32117754324461.

It is a happy number.

16442345771123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16442345771123 - 2¹² = 16442345767027 is a prime.

It is a super-3 number, since 3×16442345771123³ (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 (16442345771153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221172885561 + 8221172885562.

It is an arithmetic number, because the mean of its divisors is an integer number (8221172885562).

Almost surely, 2^{16442345771123} is an apocalyptic number.

16442345771123 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442345771123 is an equidigital number, since it uses as much as digits as its factorization.

16442345771123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 50.

The spelling of 16442345771123 in words is "sixteen trillion, four hundred forty-two billion, three hundred forty-five million, seven hundred seventy-one thousand, one hundred twenty-three".