543978183606 has 128 divisors (see below), whose sum is σ = 1291258547712. Its totient is φ = 150604800000.

The previous prime is 543978183569. The next prime is 543978183641. The reversal of 543978183606 is 606381879345.

It is a self number, because there is not a number n which added to its sum of digits gives 543978183606.

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 63 ways as a sum of consecutive naturals, for example, 146979556 + ... + 146983256.

It is an arithmetic number, because the mean of its divisors is an integer number (10087957404).

Almost surely, 2^543978183606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 543978183606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645629273856).

543978183606 is an abundant number, since it is smaller than the sum of its proper divisors (747280364106).

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

543978183606 is a wasteful number, since it uses less digits than its factorization.

543978183606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 543978183606 in words is "five hundred forty-three billion, nine hundred seventy-eight million, one hundred eighty-three thousand, six hundred six".