16554543666522 has 32 divisors (see below), whose sum is σ = 35128665781632. Its totient is φ = 5182917871104.

The previous prime is 16554543666517. The next prime is 16554543666523. The reversal of 16554543666522 is 22566634545561.

It is not an unprimeable number, because it can be changed into a prime (16554543666523) 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, 166582203 + ... + 166681550.

It is an arithmetic number, because the mean of its divisors is an integer number (1097770805676).

Almost surely, 2^{16554543666522} is an apocalyptic number.

16554543666522 is an abundant number, since it is smaller than the sum of its proper divisors (18574122115110).

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

16554543666522 is a wasteful number, since it uses less digits than its factorization.

16554543666522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333264262.

The product of its digits is 155520000, while the sum is 60.

The spelling of 16554543666522 in words is "sixteen trillion, five hundred fifty-four billion, five hundred forty-three million, six hundred sixty-six thousand, five hundred twenty-two".