549040343040 has 2016 divisors, whose sum is σ = 2449176912000. Its totient is φ = 117385003008.

The previous prime is 549040342883. The next prime is 549040343057. The reversal of 549040343040 is 40343040945.

It is a happy number.

549040343040 is a `hidden beast` number, since 549 + 0 + 40 + 3 + 4 + 30 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 549040342986 and 549040343004.

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 167 ways as a sum of consecutive naturals, for example, 6949877721 + ... + 6949877799.

It is an arithmetic number, because the mean of its divisors is an integer number (1214869500).

Almost surely, 2^549040343040 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 549040343040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1224588456000).

549040343040 is an abundant number, since it is smaller than the sum of its proper divisors (1900136568960).

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

549040343040 is an equidigital number, since it uses as much as digits as its factorization.

549040343040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 549040343040 its reverse (40343040945), we get a palindrome (589383383985).

The spelling of 549040343040 in words is "five hundred forty-nine billion, forty million, three hundred forty-three thousand, forty".