5550505049978 has 16 divisors (see below), whose sum is σ = 9554963869440. Its totient is φ = 2368834789776.

The previous prime is 5550505049953. The next prime is 5550505049989. The reversal of 5550505049978 is 8799405050555.

It is a self number, because there is not a number n which added to its sum of digits gives 5550505049978.

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, 829420601 + ... + 829427292.

It is an arithmetic number, because the mean of its divisors is an integer number (597185241840).

Almost surely, 2^{5550505049978} is an apocalyptic number.

5550505049978 is a deficient number, since it is larger than the sum of its proper divisors (4004458819462).

5550505049978 is a wasteful number, since it uses less digits than its factorization.

5550505049978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658848141.

The product of its (nonzero) digits is 56700000, while the sum is 62.

The spelling of 5550505049978 in words is "five trillion, five hundred fifty billion, five hundred five million, forty-nine thousand, nine hundred seventy-eight".