5005561656 has 32 divisors (see below), whose sum is σ = 12628717200. Its totient is φ = 1653212160.

The previous prime is 5005561643. The next prime is 5005561657. The reversal of 5005561656 is 6561655005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5005561657) 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, 954105 + ... + 959336.

Almost surely, 2^5005561656 is an apocalyptic number.

It is an amenable number.

5005561656 is an abundant number, since it is smaller than the sum of its proper divisors (7623155544).

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

5005561656 is a wasteful number, since it uses less digits than its factorization.

5005561656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913559 (or 1913555 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 5005561656 is about 70749.9940353354. The cubic root of 5005561656 is about 1710.6097316074.

The spelling of 5005561656 in words is "five billion, five million, five hundred sixty-one thousand, six hundred fifty-six".