550321454345 has 16 divisors (see below), whose sum is σ = 712499268432. Its totient is φ = 405640016640.

The previous prime is 550321454341. The next prime is 550321454363. The reversal of 550321454345 is 543454123055.

It can be written as a sum of positive squares in 8 ways, for example, as 101014001929 + 449307452416 = 317827^2 + 670304^2 .

It is not a de Polignac number, because 550321454345 - 2² = 550321454341 is a prime.

It is a super-2 number, since 2×550321454345² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550321454341) 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 15 ways as a sum of consecutive naturals, for example, 7789682 + ... + 7860011.

It is an arithmetic number, because the mean of its divisors is an integer number (44531204277).

Almost surely, 2^550321454345 is an apocalyptic number.

It is an amenable number.

550321454345 is a deficient number, since it is larger than the sum of its proper divisors (162177814087).

550321454345 is a wasteful number, since it uses less digits than its factorization.

550321454345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15650252.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 550321454345 in words is "five hundred fifty billion, three hundred twenty-one million, four hundred fifty-four thousand, three hundred forty-five".