6648026556 has 12 divisors (see below), whose sum is σ = 15512061992. Its totient is φ = 2216008848.

The previous prime is 6648026537. The next prime is 6648026563. The reversal of 6648026556 is 6556208466.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6648026556² = 88392514178562442272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277001095 + ... + 277001118.

Almost surely, 2^6648026556 is an apocalyptic number.

It is an amenable number.

6648026556 is an abundant number, since it is smaller than the sum of its proper divisors (8864035436).

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

6648026556 is a wasteful number, since it uses less digits than its factorization.

6648026556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554002220 (or 554002218 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The square root of 6648026556 is about 81535.4312921689. The cubic root of 6648026556 is about 1880.3163188135.

The spelling of 6648026556 in words is "six billion, six hundred forty-eight million, twenty-six thousand, five hundred fifty-six".