6677221380 has 48 divisors (see below), whose sum is σ = 19094019840. Its totient is φ = 1742706688.

The previous prime is 6677221373. The next prime is 6677221381. The reversal of 6677221380 is 831227766.

It is not an unprimeable number, because it can be changed into a prime (6677221381) 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, 1181085 + ... + 1186724.

It is an arithmetic number, because the mean of its divisors is an integer number (397792080).

Almost surely, 2^6677221380 is an apocalyptic number.

6677221380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6677221380 is an abundant number, since it is smaller than the sum of its proper divisors (12416798460).

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

6677221380 is a wasteful number, since it uses less digits than its factorization.

6677221380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367868 (or 2367866 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 6677221380 is about 81714.2666858120. The cubic root of 6677221380 is about 1883.0647706084.

The spelling of 6677221380 in words is "six billion, six hundred seventy-seven million, two hundred twenty-one thousand, three hundred eighty".