6680020860 has 48 divisors (see below), whose sum is σ = 20782288800. Its totient is φ = 1781338752.

The previous prime is 6680020793. The next prime is 6680020861. The reversal of 6680020860 is 680200866.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680020861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6184665 + ... + 6185744.

It is an arithmetic number, because the mean of its divisors is an integer number (432964350).

Almost surely, 2^6680020860 is an apocalyptic number.

6680020860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6680020860 is an abundant number, since it is smaller than the sum of its proper divisors (14102267940).

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

6680020860 is a wasteful number, since it uses less digits than its factorization.

6680020860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12370427 (or 12370419 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 6680020860 is about 81731.3945800511. The cubic root of 6680020860 is about 1883.3278973051.

The spelling of 6680020860 in words is "six billion, six hundred eighty million, twenty thousand, eight hundred sixty".