16442072606721 has 32 divisors (see below), whose sum is σ = 23120410199040. Its totient is φ = 10364767850304.

The previous prime is 16442072606711. The next prime is 16442072606753. The reversal of 16442072606721 is 12760627024461.

16442072606721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16442072606721 - 2¹³ = 16442072598529 is a prime.

It is a super-3 number, since 3×16442072606721³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16442072606711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63975151 + ... + 64231643.

It is an arithmetic number, because the mean of its divisors is an integer number (722512818720).

Almost surely, 2^{16442072606721} is an apocalyptic number.

It is an amenable number.

16442072606721 is a deficient number, since it is larger than the sum of its proper divisors (6678337592319).

16442072606721 is a wasteful number, since it uses less digits than its factorization.

16442072606721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258645.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 16442072606721 in words is "sixteen trillion, four hundred forty-two billion, seventy-two million, six hundred six thousand, seven hundred twenty-one".