5561663356 has 24 divisors (see below), whose sum is σ = 10847828880. Its totient is φ = 2479502592.

The previous prime is 5561663351. The next prime is 5561663363. The reversal of 5561663356 is 6533661655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561663351) 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 7 ways as a sum of consecutive naturals, for example, 2151055 + ... + 2153638.

It is an arithmetic number, because the mean of its divisors is an integer number (451992870).

Almost surely, 2^5561663356 is an apocalyptic number.

It is an amenable number.

5561663356 is a deficient number, since it is larger than the sum of its proper divisors (5286165524).

5561663356 is a wasteful number, since it uses less digits than its factorization.

5561663356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304733 (or 4304731 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 46.

The square root of 5561663356 is about 74576.5603658415. The cubic root of 5561663356 is about 1771.7464282413.

The spelling of 5561663356 in words is "five billion, five hundred sixty-one million, six hundred sixty-three thousand, three hundred fifty-six".