6663425472 has 252 divisors, whose sum is σ = 21777363608. Its totient is φ = 2018649600.

The previous prime is 6663425467. The next prime is 6663425491. The reversal of 6663425472 is 2745243666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1880022 + ... + 1883562.

Almost surely, 2^6663425472 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 6663425472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10888681804).

6663425472 is an abundant number, since it is smaller than the sum of its proper divisors (15113938136).

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

6663425472 is a wasteful number, since it uses less digits than its factorization.

6663425472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590 (or 3557 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The square root of 6663425472 is about 81629.8074970167. The cubic root of 6663425472 is about 1881.7670002234.

The spelling of 6663425472 in words is "six billion, six hundred sixty-three million, four hundred twenty-five thousand, four hundred seventy-two".