16556025453522 has 32 divisors (see below), whose sum is σ = 33564949584192. Its totient is φ = 5443634755584.

The previous prime is 16556025453491. The next prime is 16556025453529. The reversal of 16556025453522 is 22535452065561.

It is not an unprimeable number, because it can be changed into a prime (16556025453529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55189903 + ... + 55489074.

It is an arithmetic number, because the mean of its divisors is an integer number (1048904674506).

Almost surely, 2^{16556025453522} is an apocalyptic number.

16556025453522 is an abundant number, since it is smaller than the sum of its proper divisors (17008924130670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16556025453522 is a wasteful number, since it uses less digits than its factorization.

16556025453522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110679322.

The product of its (nonzero) digits is 10800000, while the sum is 51.

The spelling of 16556025453522 in words is "sixteen trillion, five hundred fifty-six billion, twenty-five million, four hundred fifty-three thousand, five hundred twenty-two".