163000655045440 has 112 divisors (see below), whose sum is σ = 396542573448192. Its totient is φ = 63790669910016.

The previous prime is 163000655045401. The next prime is 163000655045477. The reversal of 163000655045440 is 44540556000361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41072569 + ... + 44865991.

Almost surely, 2^{163000655045440} is an apocalyptic number.

163000655045440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163000655045440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198271286724096).

163000655045440 is an abundant number, since it is smaller than the sum of its proper divisors (233541918402752).

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

163000655045440 is a wasteful number, since it uses less digits than its factorization.

163000655045440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796344 (or 3796334 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 163000655045440 in words is "one hundred sixty-three trillion, six hundred fifty-five million, forty-five thousand, four hundred forty".