6662663424 has 252 divisors, whose sum is σ = 21000464800. Its totient is φ = 2102879232.

The previous prime is 6662663419. The next prime is 6662663431. The reversal of 6662663424 is 4243662666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 6662663424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3544917 + ... + 3546795.

Almost surely, 2^6662663424 is an apocalyptic number.

6662663424 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6662663424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10500232400).

6662663424 is an abundant number, since it is smaller than the sum of its proper divisors (14337801376).

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

6662663424 is an equidigital number, since it uses as much as digits as its factorization.

6662663424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1903 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 45.

The square root of 6662663424 is about 81625.1396568484. The cubic root of 6662663424 is about 1881.6952627737.

The spelling of 6662663424 in words is "six billion, six hundred sixty-two million, six hundred sixty-three thousand, four hundred twenty-four".