6555258984976 has 135 divisors (see below), whose sum is σ = 14032443323829. Its totient is φ = 2965223878656.

The previous prime is 6555258984971. The next prime is 6555258984977. The reversal of 6555258984976 is 6794898525556.

The square root of 6555258984976 is 2560324.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 6551941224976 + 3317760000 = 2559676^2 + 57600^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6555258984896 and 6555258984905.

It is not an unprimeable number, because it can be changed into a prime (6555258984971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7056252480 + ... + 7056253408.

Almost surely, 2^{6555258984976} is an apocalyptic number.

6555258984976 is the 2560324-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6555258984976

6555258984976 is an abundant number, since it is smaller than the sum of its proper divisors (7477184338853).

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

6555258984976 is an frugal number, since it uses more digits than its factorization.

6555258984976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998 (or 997 counting only the distinct ones).

The product of its digits is 6531840000, while the sum is 79.

The spelling of 6555258984976 in words is "six trillion, five hundred fifty-five billion, two hundred fifty-eight million, nine hundred eighty-four thousand, nine hundred seventy-six".