550065061555 has 4 divisors (see below), whose sum is σ = 660078073872. Its totient is φ = 440052049240.

The previous prime is 550065061549. The next prime is 550065061571. The reversal of 550065061555 is 555160560055.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 550065061555 - 2⁹ = 550065061043 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 55006506151 + ... + 55006506160.

It is an arithmetic number, because the mean of its divisors is an integer number (165019518468).

Almost surely, 2^550065061555 is an apocalyptic number.

550065061555 is a deficient number, since it is larger than the sum of its proper divisors (110013012317).

550065061555 is a wasteful number, since it uses less digits than its factorization.

550065061555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110013012316.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 550065061555 in words is "five hundred fifty billion, sixty-five million, sixty-one thousand, five hundred fifty-five".