6580021441464 has 128 divisors (see below), whose sum is σ = 19357523596800. Its totient is φ = 2063838389760.

The previous prime is 6580021441423. The next prime is 6580021441493. The reversal of 6580021441464 is 4641441200856.

6580021441464 is a `hidden beast` number, since 6 + 580 + 0 + 2 + 1 + 4 + 4 + 1 + 4 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15681679 + ... + 16095809.

It is an arithmetic number, because the mean of its divisors is an integer number (151230653100).

Almost surely, 2^{6580021441464} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6580021441464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9678761798400).

6580021441464 is an abundant number, since it is smaller than the sum of its proper divisors (12777502155336).

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

6580021441464 is a wasteful number, since it uses less digits than its factorization.

6580021441464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418490 (or 418480 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 6580021441464 in words is "six trillion, five hundred eighty billion, twenty-one million, four hundred forty-one thousand, four hundred sixty-four".