16520273435128 has 32 divisors (see below), whose sum is σ = 30999115186560. Its totient is φ = 8253843539040.

The previous prime is 16520273435101. The next prime is 16520273435161. The reversal of 16520273435128 is 82153437202561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196321623 + ... + 196405753.

It is an arithmetic number, because the mean of its divisors is an integer number (968722349580).

Almost surely, 2^{16520273435128} is an apocalyptic number.

It is an amenable number.

16520273435128 is a deficient number, since it is larger than the sum of its proper divisors (14478841751432).

16520273435128 is a wasteful number, since it uses less digits than its factorization.

16520273435128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102547 (or 102543 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 16520273435128 in words is "sixteen trillion, five hundred twenty billion, two hundred seventy-three million, four hundred thirty-five thousand, one hundred twenty-eight".