6551488841556 has 48 divisors (see below), whose sum is σ = 15703324640640. Its totient is φ = 2124352402560.

The previous prime is 6551488841539. The next prime is 6551488841563.

6551488841556 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6551488841556² (a number of 26 digits) 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 15 ways as a sum of consecutive naturals, for example, 500686 + ... + 3654266.

It is an arithmetic number, because the mean of its divisors is an integer number (327152596680).

Almost surely, 2^{6551488841556} is an apocalyptic number.

It is an amenable number.

6551488841556 is an abundant number, since it is smaller than the sum of its proper divisors (9151835799084).

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

6551488841556 is a wasteful number, since it uses less digits than its factorization.

6551488841556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158304 (or 3158302 counting only the distinct ones).

The product of its digits is 184320000, while the sum is 66.

The spelling of 6551488841556 in words is "six trillion, five hundred fifty-one billion, four hundred eighty-eight million, eight hundred forty-one thousand, five hundred fifty-six".