6663325680 has 200 divisors, whose sum is σ = 25246870704. Its totient is φ = 1615334400.

The previous prime is 6663325651. The next prime is 6663325687. The reversal of 6663325680 is 865233666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663325687) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24540 + ... + 118020.

Almost surely, 2^6663325680 is an apocalyptic number.

6663325680 is a gapful number since it is divisible by the number (60) 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 6663325680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12623435352).

6663325680 is an abundant number, since it is smaller than the sum of its proper divisors (18583545024).

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

6663325680 is a wasteful number, since it uses less digits than its factorization.

6663325680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93517 (or 93502 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The square root of 6663325680 is about 81629.1962474212. The cubic root of 6663325680 is about 1881.7576063448.

The spelling of 6663325680 in words is "six billion, six hundred sixty-three million, three hundred twenty-five thousand, six hundred eighty".