6556005650550 has 24 divisors (see below), whose sum is σ = 16258894013736. Its totient is φ = 1748268173440.

The previous prime is 6556005650479. The next prime is 6556005650561. The reversal of 6556005650550 is 550565006556.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6556005650550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21853352019 + ... + 21853352318.

It is an arithmetic number, because the mean of its divisors is an integer number (677453917239).

Almost surely, 2^{6556005650550} is an apocalyptic number.

6556005650550 is an abundant number, since it is smaller than the sum of its proper divisors (9702888363186).

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

6556005650550 is a wasteful number, since it uses less digits than its factorization.

6556005650550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43706704352 (or 43706704347 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 6556005650550 in words is "six trillion, five hundred fifty-six billion, five million, six hundred fifty thousand, five hundred fifty".