550036778018 has 16 divisors (see below), whose sum is σ = 1015452513600. Its totient is φ = 217596967056.

The previous prime is 550036778009. The next prime is 550036778059. The reversal of 550036778018 is 810877630055.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1511089868 + ... + 1511090231.

It is an arithmetic number, because the mean of its divisors is an integer number (63465782100).

Almost surely, 2^550036778018 is an apocalyptic number.

550036778018 is a deficient number, since it is larger than the sum of its proper divisors (465415735582).

550036778018 is a wasteful number, since it uses less digits than its factorization.

550036778018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022180121.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 550036778018 in words is "five hundred fifty billion, thirty-six million, seven hundred seventy-eight thousand, eighteen".