6880020560 has 80 divisors (see below), whose sum is σ = 18299578752. Its totient is φ = 2356492800.

The previous prime is 6880020533. The next prime is 6880020617. The reversal of 6880020560 is 650200886.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 6880020560.

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, 605330 + ... + 616590.

Almost surely, 2^6880020560 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 6880020560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9149789376).

6880020560 is an abundant number, since it is smaller than the sum of its proper divisors (11419558192).

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

6880020560 is a wasteful number, since it uses less digits than its factorization.

6880020560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12372 (or 12366 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 6880020560 is about 82945.8893496236. The cubic root of 6880020560 is about 1901.9389771750.

The spelling of 6880020560 in words is "six billion, eight hundred eighty million, twenty thousand, five hundred sixty".