549202316544 has 216 divisors, whose sum is σ = 1828359798720. Its totient is φ = 155296825344.

The previous prime is 549202316519. The next prime is 549202316549. The reversal of 549202316544 is 445613202945.

549202316544 is a `hidden beast` number, since 5 + 4 + 92 + 0 + 2 + 3 + 16 + 544 = 666.

It is a super-2 number, since 2×549202316544² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 549202316544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549202316549) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1388887 + ... + 1739945.

Almost surely, 2^549202316544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549202316544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914179899360).

549202316544 is an abundant number, since it is smaller than the sum of its proper divisors (1279157482176).

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

549202316544 is a wasteful number, since it uses less digits than its factorization.

549202316544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351185 (or 351168 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 549202316544 in words is "five hundred forty-nine billion, two hundred two million, three hundred sixteen thousand, five hundred forty-four".