6685280448 has 448 divisors, whose sum is σ = 23595909120. Its totient is φ = 1619251200.

The previous prime is 6685280429. The next prime is 6685280467. The reversal of 6685280448 is 8440825866.

It is an interprime number because it is at equal distance from previous prime (6685280429) and next prime (6685280467).

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×6685280448² = 89385949336822161408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6685280448.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13290565 + ... + 13291067.

It is an arithmetic number, because the mean of its divisors is an integer number (52669440).

Almost surely, 2^6685280448 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 6685280448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11797954560).

6685280448 is an abundant number, since it is smaller than the sum of its proper divisors (16910628672).

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

6685280448 is a wasteful number, since it uses less digits than its factorization.

6685280448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 51.

The square root of 6685280448 is about 81763.5643058692. The cubic root of 6685280448 is about 1883.8220539557.

The spelling of 6685280448 in words is "six billion, six hundred eighty-five million, two hundred eighty thousand, four hundred forty-eight".