16442731566123 has 8 divisors (see below), whose sum is σ = 21927382709136. Its totient is φ = 10959950733600.

The previous prime is 16442731566109. The next prime is 16442731566179. The reversal of 16442731566123 is 32166513724461.

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

It is not a de Polignac number, because 16442731566123 - 2³² = 16438436598827 is a prime.

It is a super-3 number, since 3×16442731566123³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (16442731562123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467557108 + ... + 467592273.

It is an arithmetic number, because the mean of its divisors is an integer number (2740922838642).

Almost surely, 2^{16442731566123} is an apocalyptic number.

16442731566123 is a deficient number, since it is larger than the sum of its proper divisors (5484651143013).

16442731566123 is an equidigital number, since it uses as much as digits as its factorization.

16442731566123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935155245.

The product of its digits is 4354560, while the sum is 51.

The spelling of 16442731566123 in words is "sixteen trillion, four hundred forty-two billion, seven hundred thirty-one million, five hundred sixty-six thousand, one hundred twenty-three".