16441024412521 has 4 divisors (see below), whose sum is σ = 16450435418512. Its totient is φ = 16431613406532.

The previous prime is 16441024412473. The next prime is 16441024412537. The reversal of 16441024412521 is 12521442014461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16441024412521 - 2¹⁵ = 16441024379753 is a prime.

It is a super-3 number, since 3×16441024412521³ (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 not an unprimeable number, because it can be changed into a prime (16441024412621) 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, 4705500375 + ... + 4705503868.

It is an arithmetic number, because the mean of its divisors is an integer number (4112608854628).

Almost surely, 2^{16441024412521} is an apocalyptic number.

It is an amenable number.

16441024412521 is a deficient number, since it is larger than the sum of its proper divisors (9411005991).

16441024412521 is an equidigital number, since it uses as much as digits as its factorization.

16441024412521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9411005990.

The product of its (nonzero) digits is 61440, while the sum is 37.

Adding to 16441024412521 its reverse (12521442014461), we get a palindrome (28962466426982).

The spelling of 16441024412521 in words is "sixteen trillion, four hundred forty-one billion, twenty-four million, four hundred twelve thousand, five hundred twenty-one".