6684455280 has 40 divisors (see below), whose sum is σ = 20721812112. Its totient is φ = 1782521344.

The previous prime is 6684455279. The next prime is 6684455317. The reversal of 6684455280 is 825544866.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×6684455280³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13925709 + ... + 13926188.

Almost surely, 2^6684455280 is an apocalyptic number.

6684455280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6684455280 is an abundant number, since it is smaller than the sum of its proper divisors (14037356832).

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

6684455280 is a wasteful number, since it uses less digits than its factorization.

6684455280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27851913 (or 27851907 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 48.

The square root of 6684455280 is about 81758.5180883313. The cubic root of 6684455280 is about 1883.7445436877.

The spelling of 6684455280 in words is "six billion, six hundred eighty-four million, four hundred fifty-five thousand, two hundred eighty".