6630750720 has 1120 divisors, whose sum is σ = 28982162880. Its totient is φ = 1433272320.

The previous prime is 6630750719. The next prime is 6630750727. The reversal of 6630750720 is 270570366.

It is a happy number.

It is a super-2 number, since 2×6630750720² = 87933710221561036800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6630750727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 348986871 + ... + 348986889.

Almost surely, 2^6630750720 is an apocalyptic number.

6630750720 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 6630750720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14491081440).

6630750720 is an abundant number, since it is smaller than the sum of its proper divisors (22351412160).

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

6630750720 is a wasteful number, since it uses less digits than its factorization.

6630750720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 6630750720 is about 81429.4217098464. The cubic root of 6630750720 is about 1878.6861500765.

The spelling of 6630750720 in words is "six billion, six hundred thirty million, seven hundred fifty thousand, seven hundred twenty".