6680440424 has 16 divisors (see below), whose sum is σ = 14315229600. Its totient is φ = 2863045872.

The previous prime is 6680440399. The next prime is 6680440427. The reversal of 6680440424 is 4240440866.

It is a super-2 number, since 2×6680440424² = 89256568517226599552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6680440427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59646734 + ... + 59646845.

It is an arithmetic number, because the mean of its divisors is an integer number (894701850).

Almost surely, 2^6680440424 is an apocalyptic number.

It is an amenable number.

6680440424 is an abundant number, since it is smaller than the sum of its proper divisors (7634789176).

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

6680440424 is a wasteful number, since it uses less digits than its factorization.

6680440424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119293592 (or 119293588 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 38.

The square root of 6680440424 is about 81733.9612645808. The cubic root of 6680440424 is about 1883.3673263258.

The spelling of 6680440424 in words is "six billion, six hundred eighty million, four hundred forty thousand, four hundred twenty-four".