16042253106445 has 8 divisors (see below), whose sum is σ = 19302314195736. Its totient is φ = 12799395506496.

The previous prime is 16042253106389. The next prime is 16042253106547. The reversal of 16042253106445 is 54460135224061.

It can be written as a sum of positive squares in 4 ways, for example, as 3377060431684 + 12665192674761 = 1837678^2 + 3558819^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16042253106445 - 2²⁷ = 16042118888717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4300870282 + ... + 4300874011.

It is an arithmetic number, because the mean of its divisors is an integer number (2412789274467).

Almost surely, 2^{16042253106445} is an apocalyptic number.

It is an amenable number.

16042253106445 is a deficient number, since it is larger than the sum of its proper divisors (3260061089291).

16042253106445 is an equidigital number, since it uses as much as digits as its factorization.

16042253106445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8601744671.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 16042253106445 in words is "sixteen trillion, forty-two billion, two hundred fifty-three million, one hundred six thousand, four hundred forty-five".