550411646321 has 4 divisors (see below), whose sum is σ = 550414711152. Its totient is φ = 550408581492.

The previous prime is 550411646299. The next prime is 550411646327. The reversal of 550411646321 is 123646114055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550411646321 - 2²² = 550407452017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550411646327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1245071 + ... + 1628196.

It is an arithmetic number, because the mean of its divisors is an integer number (137603677788).

Almost surely, 2^550411646321 is an apocalyptic number.

It is an amenable number.

550411646321 is a deficient number, since it is larger than the sum of its proper divisors (3064831).

550411646321 is a wasteful number, since it uses less digits than its factorization.

550411646321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064830.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 550411646321 in words is "five hundred fifty billion, four hundred eleven million, six hundred forty-six thousand, three hundred twenty-one".