6630216450 has 384 divisors, whose sum is σ = 20398694400. Its totient is φ = 1411488000.

The previous prime is 6630216449. The next prime is 6630216451. The reversal of 6630216450 is 546120366.

It is an interprime number because it is at equal distance from previous prime (6630216449) and next prime (6630216451).

It is a super-3 number, since 3×6630216450³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630216451) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 112376521 + ... + 112376579.

It is an arithmetic number, because the mean of its divisors is an integer number (53121600).

Almost surely, 2^6630216450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6630216450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10199347200).

6630216450 is an abundant number, since it is smaller than the sum of its proper divisors (13768477950).

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

6630216450 is a wasteful number, since it uses less digits than its factorization.

6630216450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 6630216450 is about 81426.1410727538. The cubic root of 6630216450 is about 1878.6356906011.

The spelling of 6630216450 in words is "six billion, six hundred thirty million, two hundred sixteen thousand, four hundred fifty".