6580620433984 has 21 divisors (see below), whose sum is σ = 13058459397507. Its totient is φ = 3290299955904.

The previous prime is 6580620433901. The next prime is 6580620433987. The reversal of 6580620433984 is 4893340260856.

The square root of 6580620433984 is 2565272.

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

It is a super-2 number, since 2×6580620433984² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6580620433987) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20361847 + ... + 20682505.

Almost surely, 2^{6580620433984} is an apocalyptic number.

6580620433984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

6580620433984 is the 2565272-nd square number.

It is an amenable number.

6580620433984 is a deficient number, since it is larger than the sum of its proper divisors (6477838963523).

6580620433984 is an frugal number, since it uses more digits than its factorization.

6580620433984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641330 (or 320661 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 58.

The spelling of 6580620433984 in words is "six trillion, five hundred eighty billion, six hundred twenty million, four hundred thirty-three thousand, nine hundred eighty-four".