6554668664556 has 36 divisors (see below), whose sum is σ = 16574158923504. Its totient is φ = 2184175735200.

The previous prime is 6554668664497. The next prime is 6554668664603.

6554668664556 is a `hidden beast` number, since 6 + 5 + 5 + 4 + 6 + 6 + 8 + 6 + 64 + 556 = 666.

6554668664556 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×6554668664556² (a number of 26 digits) contains 22 as substring.

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, 29630760 + ... + 29851151.

Almost surely, 2^{6554668664556} is an apocalyptic number.

It is an amenable number.

6554668664556 is an abundant number, since it is smaller than the sum of its proper divisors (10019490258948).

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

6554668664556 is a wasteful number, since it uses less digits than its factorization.

6554668664556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59484982 (or 59484977 counting only the distinct ones).

The product of its digits is 3732480000, while the sum is 72.

The spelling of 6554668664556 in words is "six trillion, five hundred fifty-four billion, six hundred sixty-eight million, six hundred sixty-four thousand, five hundred fifty-six".