16441566013501 has 4 divisors (see below), whose sum is σ = 16444601198172. Its totient is φ = 16438530828832.

The previous prime is 16441566013469. The next prime is 16441566013517. The reversal of 16441566013501 is 10531066514461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5411369275225 + 11030196738276 = 2326235^2 + 3321174^2 .

It is a cyclic number.

It is not a de Polignac number, because 16441566013501 - 2⁵ = 16441566013469 is a prime.

It is a super-3 number, since 3×16441566013501³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16441566013591) 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, 1517584210 + ... + 1517595043.

It is an arithmetic number, because the mean of its divisors is an integer number (4111150299543).

Almost surely, 2^{16441566013501} is an apocalyptic number.

It is an amenable number.

16441566013501 is a deficient number, since it is larger than the sum of its proper divisors (3035184671).

16441566013501 is an equidigital number, since it uses as much as digits as its factorization.

16441566013501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035184670.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 16441566013501 in words is "sixteen trillion, four hundred forty-one billion, five hundred sixty-six million, thirteen thousand, five hundred one".