549351385632 has 360 divisors, whose sum is σ = 1903227701760. Its totient is φ = 154967904000.

The previous prime is 549351385577. The next prime is 549351385643. The reversal of 549351385632 is 236583153945.

549351385632 is a `hidden beast` number, since 5 + 4 + 93 + 513 + 8 + 5 + 6 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 59 ways as a sum of consecutive naturals, for example, 10006257 + ... + 10061007.

It is an arithmetic number, because the mean of its divisors is an integer number (5286743616).

Almost surely, 2^549351385632 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 549351385632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (951613850880).

549351385632 is an abundant number, since it is smaller than the sum of its proper divisors (1353876316128).

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

549351385632 is a wasteful number, since it uses less digits than its factorization.

549351385632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54866 (or 54842 counting only the distinct ones).

The product of its digits is 11664000, while the sum is 54.

The spelling of 549351385632 in words is "five hundred forty-nine billion, three hundred fifty-one million, three hundred eighty-five thousand, six hundred thirty-two".