17155545066 has 64 divisors (see below), whose sum is σ = 41633602560. Its totient is φ = 5193100080.

The previous prime is 17155545041. The next prime is 17155545067. The reversal of 17155545066 is 66054555171.

It is a happy number.

17155545066 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (17155545067) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 559465 + ... + 589331.

It is an arithmetic number, because the mean of its divisors is an integer number (650525040).

Almost surely, 2^17155545066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17155545066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20816801280).

17155545066 is an abundant number, since it is smaller than the sum of its proper divisors (24478057494).

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

17155545066 is a wasteful number, since it uses less digits than its factorization.

17155545066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30856 (or 30850 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 17155545066 in words is "seventeen billion, one hundred fifty-five million, five hundred forty-five thousand, sixty-six".