651006216 has 96 divisors (see below), whose sum is σ = 2018577600. Its totient is φ = 185673600.

The previous prime is 651006199. The next prime is 651006229. The reversal of 651006216 is 612600156.

It is a happy number.

651006216 is a `hidden beast` number, since 651 + 0 + 0 + 6 + 2 + 1 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 651006216.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 529090 + ... + 530318.

It is an arithmetic number, because the mean of its divisors is an integer number (21026850).

Almost surely, 2^651006216 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 651006216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009288800).

651006216 is an abundant number, since it is smaller than the sum of its proper divisors (1367571384).

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

651006216 is a wasteful number, since it uses less digits than its factorization.

651006216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299 (or 2292 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 651006216 is about 25514.8234561794. The cubic root of 651006216 is about 866.6858613763.

The spelling of 651006216 in words is "six hundred fifty-one million, six thousand, two hundred sixteen".