6561483122880 has 1568 divisors, whose sum is σ = 27939522723840. Its totient is φ = 1435332648960.

The previous prime is 6561483122839. The next prime is 6561483122891. The reversal of 6561483122880 is 882213841656.

6561483122880 is a `hidden beast` number, since 6 + 5 + 6 + 1 + 48 + 312 + 288 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 6014191135 + ... + 6014192225.

Almost surely, 2^{6561483122880} is an apocalyptic number.

6561483122880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6561483122880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13969761361920).

6561483122880 is an abundant number, since it is smaller than the sum of its proper divisors (21378039600960).

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

6561483122880 is a wasteful number, since it uses less digits than its factorization.

6561483122880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1264 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 6561483122880 in words is "six trillion, five hundred sixty-one billion, four hundred eighty-three million, one hundred twenty-two thousand, eight hundred eighty".