550665451655 has 16 divisors (see below), whose sum is σ = 720944657568. Its totient is φ = 400443120000.

The previous prime is 550665451631. The next prime is 550665451669. The reversal of 550665451655 is 556154566055.

It is not a de Polignac number, because 550665451655 - 2¹⁸ = 550665189511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550665451597 and 550665451606.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 38945 + ... + 1050165.

It is an arithmetic number, because the mean of its divisors is an integer number (45059041098).

Almost surely, 2^550665451655 is an apocalyptic number.

550665451655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

550665451655 is a deficient number, since it is larger than the sum of its proper divisors (170279205913).

550665451655 is a wasteful number, since it uses less digits than its factorization.

550665451655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021138.

The product of its (nonzero) digits is 13500000, while the sum is 53.

The spelling of 550665451655 in words is "five hundred fifty billion, six hundred sixty-five million, four hundred fifty-one thousand, six hundred fifty-five".