549385563720 has 384 divisors, whose sum is σ = 1946946464640. Its totient is φ = 123634667520.

The previous prime is 549385563631. The next prime is 549385563733. The reversal of 549385563720 is 27365583945.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 469158735 + ... + 469159905.

It is an arithmetic number, because the mean of its divisors is an integer number (5070173085).

Almost surely, 2^549385563720 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 549385563720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973473232320).

549385563720 is an abundant number, since it is smaller than the sum of its proper divisors (1397560900920).

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

549385563720 is a wasteful number, since it uses less digits than its factorization.

549385563720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365 (or 2354 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 57.

The spelling of 549385563720 in words is "five hundred forty-nine billion, three hundred eighty-five million, five hundred sixty-three thousand, seven hundred twenty".