16442020305642 has 8 divisors (see below), whose sum is σ = 32884040611296. Its totient is φ = 5480673435212.

The previous prime is 16442020305619. The next prime is 16442020305647. The reversal of 16442020305642 is 24650302024461.

It is a happy number.

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

16442020305642 is an admirable number.

It is a super-3 number, since 3×16442020305642³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16442020305642.

It is not an unprimeable number, because it can be changed into a prime (16442020305647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370168358798 + ... + 1370168358809.

It is an arithmetic number, because the mean of its divisors is an integer number (4110505076412).

Almost surely, 2^{16442020305642} is an apocalyptic number.

16442020305642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16442020305642 is a wasteful number, since it uses less digits than its factorization.

16442020305642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740336717612.

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 16442020305642 in words is "sixteen trillion, four hundred forty-two billion, twenty million, three hundred five thousand, six hundred forty-two".