550778142720 has 256 divisors, whose sum is σ = 1898059272480. Its totient is φ = 135574585344.

The previous prime is 550778142683. The next prime is 550778142749. The reversal of 550778142720 is 27241877055.

It is a tau number, because it is divible by the number of its divisors (256).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 550778142720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6346662 + ... + 6432858.

Almost surely, 2^550778142720 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 550778142720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (949029636240).

550778142720 is an abundant number, since it is smaller than the sum of its proper divisors (1347281129760).

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

550778142720 is an equidigital number, since it uses as much as digits as its factorization.

550778142720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86248 (or 86220 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 48.

The spelling of 550778142720 in words is "five hundred fifty billion, seven hundred seventy-eight million, one hundred forty-two thousand, seven hundred twenty".