550635545646 has 32 divisors (see below), whose sum is σ = 1224094360320. Its totient is φ = 183476209752.

The previous prime is 550635545639. The next prime is 550635545657. The reversal of 550635545646 is 646545536055.

550635545646 is a `hidden beast` number, since 5 + 5 + 0 + 6 + 35 + 545 + 64 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 550635545592 and 550635545601.

It is a congruent number.

It is an unprimeable number.

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, 1770760 + ... + 2058363.

It is an arithmetic number, because the mean of its divisors is an integer number (38252948760).

Almost surely, 2^550635545646 is an apocalyptic number.

550635545646 is an abundant number, since it is smaller than the sum of its proper divisors (673458814674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550635545646 is a wasteful number, since it uses less digits than its factorization.

550635545646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831797 (or 3831791 counting only the distinct ones).

The product of its (nonzero) digits is 32400000, while the sum is 54.

The spelling of 550635545646 in words is "five hundred fifty billion, six hundred thirty-five million, five hundred forty-five thousand, six hundred forty-six".