6553663556 has 12 divisors (see below), whose sum is σ = 12511539600. Its totient is φ = 2978937960.

The previous prime is 6553663553. The next prime is 6553663577.

It is a happy number.

6553663556 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (6553663553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74473406 + ... + 74473493.

It is an arithmetic number, because the mean of its divisors is an integer number (1042628300).

Almost surely, 2^6553663556 is an apocalyptic number.

It is an amenable number.

6553663556 is a deficient number, since it is larger than the sum of its proper divisors (5957876044).

6553663556 is a wasteful number, since it uses less digits than its factorization.

6553663556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148946914 (or 148946912 counting only the distinct ones).

The product of its digits is 7290000, while the sum is 50.

The square root of 6553663556 is about 80954.7006417787. The cubic root of 6553663556 is about 1871.3774018791.

The spelling of 6553663556 in words is "six billion, five hundred fifty-three million, six hundred sixty-three thousand, five hundred fifty-six".