16520513441 has 16 divisors (see below), whose sum is σ = 17086316544. Its totient is φ = 15963699024.

The previous prime is 16520513413. The next prime is 16520513461. The reversal of 16520513441 is 14431502561.

16520513441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16520513441 - 2³⁰ = 15446771617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16520513398 and 16520513407.

It is not an unprimeable number, because it can be changed into a prime (16520513461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2000066 + ... + 2008308.

It is an arithmetic number, because the mean of its divisors is an integer number (1067894784).

Almost surely, 2^16520513441 is an apocalyptic number.

It is an amenable number.

16520513441 is a deficient number, since it is larger than the sum of its proper divisors (565803103).

16520513441 is a wasteful number, since it uses less digits than its factorization.

16520513441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8780.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 16520513441 in words is "sixteen billion, five hundred twenty million, five hundred thirteen thousand, four hundred forty-one".